Weight Watchers Calculator Ebay

Weight Watchers Calculator eBay – Estimate Your Savings :root { –primary-color: #004a99; –success-color: #28a745; –background-color: #f8f9fa; –text-color: #333; –border-color: #ddd; –card-background: #fff; –shadow: 0 4px 8px rgba(0,0,0,0.1); } body { font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; background-color: var(–background-color); color: var(–text-color); line-height: 1.6; margin: 0; padding: 0; display: flex; flex-direction: column; align-items: center; } .container { width: 100%; max-width: 960px; margin: 20px auto; padding: 20px; background-color: var(–card-background); border-radius: 8px; box-shadow: var(–shadow); } header { background-color: var(–primary-color); color: white; padding: 20px 0; text-align: center; width: 100%; } header h1 { margin: 0; font-size: 2.5em; } main { width: 100%; } section { margin-bottom: 30px; padding: 25px; background-color: var(–card-background); border-radius: 8px; box-shadow: var(–shadow); } h2, h3 { color: var(–primary-color); margin-bottom: 15px; } .loan-calc-container { display: flex; flex-direction: column; gap: 15px; } .input-group { display: flex; flex-direction: column; gap: 5px; } .input-group label { font-weight: bold; color: var(–primary-color); } .input-group input[type="number"], .input-group input[type="text"], .input-group select { padding: 10px; border: 1px solid var(–border-color); border-radius: 4px; font-size: 1em; width: calc(100% – 22px); /* Adjust for padding */ } .input-group input:focus, .input-group select:focus { outline: none; border-color: var(–primary-color); box-shadow: 0 0 0 2px rgba(0, 74, 153, 0.2); } .helper-text { font-size: 0.85em; color: #666; } .error-message { color: red; font-size: 0.8em; margin-top: 5px; min-height: 1.2em; /* Prevent layout shift */ } .button-group { display: flex; gap: 10px; margin-top: 20px; flex-wrap: wrap; } button { padding: 12px 20px; border: none; border-radius: 5px; cursor: pointer; font-size: 1em; font-weight: bold; transition: background-color 0.3s ease; } .btn-primary { background-color: var(–primary-color); color: white; } .btn-primary:hover { background-color: #003366; } .btn-success { background-color: var(–success-color); color: white; } .btn-success:hover { background-color: #218838; } .btn-secondary { background-color: #6c757d; color: white; } .btn-secondary:hover { background-color: #5a6268; } #result { margin-top: 25px; padding: 20px; background-color: var(–primary-color); color: white; border-radius: 8px; text-align: center; box-shadow: var(–shadow); } #result h3 { color: white; margin-top: 0; font-size: 1.8em; } #result .main-result { font-size: 2.5em; font-weight: bold; margin: 10px 0; } #result .intermediate-values div { margin: 8px 0; font-size: 1.1em; } #result .formula-explanation { font-size: 0.9em; margin-top: 15px; opacity: 0.8; } table { width: 100%; border-collapse: collapse; margin-top: 20px; } th, td { padding: 10px; text-align: left; border: 1px solid var(–border-color); } th { background-color: var(–primary-color); color: white; } tr:nth-child(even) { background-color: #f2f2f2; } caption { font-size: 1.1em; font-weight: bold; color: var(–primary-color); margin-bottom: 10px; caption-side: top; text-align: left; } canvas { margin-top: 20px; width: 100%; max-width: 600px; /* Limit canvas width for better aspect ratio */ height: auto; display: block; /* Center canvas */ margin-left: auto; margin-right: auto; } .chart-container { text-align: center; margin-top: 20px; } .chart-caption { font-size: 0.9em; color: #666; margin-top: 10px; } .faq-section { background-color: var(–card-background); border-radius: 8px; box-shadow: var(–shadow); padding: 25px; margin-top: 30px; } .faq-item { margin-bottom: 15px; } .faq-item h3 { cursor: pointer; margin-bottom: 5px; font-size: 1.2em; color: var(–primary-color); } .faq-item p { display: none; /* Hidden by default */ margin-top: 5px; padding-left: 15px; border-left: 3px solid var(–primary-color); } .faq-item.open p { display: block; } .internal-links-section ul { list-style: none; padding: 0; } .internal-links-section li { margin-bottom: 10px; } .internal-links-section a { color: var(–primary-color); text-decoration: none; font-weight: bold; } .internal-links-section a:hover { text-decoration: underline; } footer { text-align: center; padding: 20px; margin-top: 30px; width: 100%; font-size: 0.9em; color: #666; } .article-content { text-align: left; margin-top: 30px; padding: 25px; background-color: var(–card-background); border-radius: 8px; box-shadow: var(–shadow); } .article-content h2 { font-size: 2em; margin-top: 0; } .article-content h3 { font-size: 1.5em; margin-top: 20px; } .article-content p { margin-bottom: 15px; } .article-content ul, .article-content ol { margin-left: 20px; margin-bottom: 15px; } .article-content li { margin-bottom: 8px; } .article-content strong { color: var(–primary-color); } .highlight-result { font-size: 1.8em; font-weight: bold; color: var(–success-color); } .variable-table th, .variable-table td { border: 1px solid #ccc; } .variable-table th { background-color: #e9ecef; color: #495057; } .variable-table tr:nth-child(even) { background-color: #f8f9fa; } .variable-table { margin-top: 15px; } .variable-table td:first-child { font-weight: bold; } .copy-button { background-color: #6c757d; color: white; margin-left: 10px; } .copy-button:hover { background-color: #5a6268; } .tooltip { position: relative; display: inline-block; border-bottom: 1px dotted black; cursor: help; } .tooltip .tooltiptext { visibility: hidden; width: 220px; background-color: #555; color: #fff; text-align: center; border-radius: 6px; padding: 5px 10px; position: absolute; z-index: 1; bottom: 125%; left: 50%; margin-left: -110px; opacity: 0; transition: opacity 0.3s; font-size: 0.8em; line-height: 1.4; } .tooltip .tooltiptext::after { content: ""; position: absolute; top: 100%; left: 50%; margin-left: -5px; border-width: 5px; border-style: solid; border-color: #555 transparent transparent transparent; } .tooltip:hover .tooltiptext { visibility: visible; opacity: 1; }

Weight Watchers Calculator eBay

Estimate your potential savings and track your progress effectively.

Weight Watchers eBay Savings Calculator

Enter the standard monthly cost of your Weight Watchers plan.
Enter the percentage discount you expect on eBay memberships (e.g., 15 for 15%).
Enter the average percentage discount you expect on WW branded products (e.g., 10 for 10%).
Estimate how much you typically spend on WW branded food products per month.
How many months do you want to project savings for?

Estimated Savings Over 12 Months

Membership Savings:
Product Savings:
Total Official Cost:
Savings are calculated by summing the discounted membership cost and discounted product cost over the specified period.

Savings Breakdown Table

Metric Official Cost eBay Cost Savings
Membership (Monthly)
Products (Monthly)
Total (Per Month)
Total (12 Months)
Monthly Savings Comparison: Official vs. eBay

What is a Weight Watchers Calculator eBay?

A Weight Watchers Calculator eBay is a specialized financial tool designed to help individuals estimate the potential cost savings they can achieve by purchasing Weight Watchers (WW) memberships and related products through the eBay marketplace, compared to official channels. This calculator helps users quantify the financial benefits of leveraging eBay's often discounted offerings for their WW journey.

Who should use it:

  • Current or prospective Weight Watchers members exploring cost-saving options.
  • Individuals who frequently purchase WW branded products and are looking for better deals.
  • Budget-conscious individuals aiming to optimize their spending on health and wellness programs.
  • Anyone curious about the potential financial impact of buying WW memberships or products from third-party sellers like eBay.

Common misconceptions:

  • Misconception: eBay only sells used WW products. Reality: eBay offers both new and used items, including official WW merchandise, starter kits, and sometimes even membership codes.
  • Misconception: Discounts on eBay are always significant. Reality: While discounts are common, they vary greatly depending on the seller, product condition, and demand. It's crucial to compare prices.
  • Misconception: Buying through eBay voids official WW benefits. Reality: This depends on what is being purchased. For products, there's usually no impact. For memberships, ensure the code or subscription purchased is legitimate and recognized by WW.

Weight Watchers eBay Savings Calculator Formula and Mathematical Explanation

The core of the Weight Watchers Calculator eBay relies on calculating the difference between the official cost of WW memberships and products and their estimated cost when purchased through eBay, factoring in available discounts. The calculation is performed over a specified period (e.g., months).

Step-by-step derivation:

  1. Calculate Monthly Membership Savings: Subtract the discounted eBay membership cost from the official monthly membership cost.
  2. Calculate Monthly Product Savings: Subtract the discounted eBay product cost from the official monthly product cost.
  3. Calculate Total Monthly Savings: Sum the monthly membership savings and monthly product savings.
  4. Calculate Total Savings Over Period: Multiply the total monthly savings by the number of months in the calculation period.

Variable Explanations:

  • Official Monthly WW Membership Cost: The standard price charged by Weight Watchers for their monthly subscription plan.
  • eBay Membership Discount (%): The percentage discount typically found on WW memberships sold via eBay.
  • Official Monthly Product Spend: The estimated amount spent on WW branded food products or accessories per month if bought directly or at retail.
  • eBay Product Discount (%): The average percentage discount expected on WW branded products purchased from eBay sellers.
  • Calculation Period (Months): The duration (in months) for which the savings are projected.

Variables Table:

Variable Meaning Unit Typical Range
Official Monthly WW Membership Cost Standard monthly subscription fee for WW. Currency (e.g., USD) $15 – $45
eBay Membership Discount (%) Percentage reduction on WW membership when bought via eBay. Percentage (%) 0% – 50%
Official Monthly Product Spend Estimated monthly expenditure on WW branded items. Currency (e.g., USD) $0 – $200+
eBay Product Discount (%) Average percentage reduction on WW products from eBay. Percentage (%) 0% – 70%
Calculation Period (Months) Duration for savings projection. Months 1 – 60

Practical Examples (Real-World Use Cases)

Example 1: Focused on Membership Savings

Sarah is a dedicated Weight Watchers member who pays the official monthly fee. She notices WW membership codes occasionally listed on eBay at a discount. She wants to see how much she could save over a year if she buys her membership through eBay.

  • Inputs:
    • Monthly WW Membership Cost (Official): $23.95
    • eBay Membership Discount (%): 20%
    • eBay Product Discount (%): 5% (She rarely buys products on eBay)
    • Estimated Monthly Product Spend (Official): $10 (Minimal)
    • Calculation Period (Months): 12
  • Calculations:
    • Official Monthly Cost: $23.95 (Membership) + $10 (Products) = $33.95
    • eBay Membership Cost: $23.95 * (1 – 0.20) = $19.16
    • eBay Product Cost: $10 * (1 – 0.05) = $9.50
    • Total eBay Monthly Cost: $19.16 + $9.50 = $28.66
    • Total Monthly Savings: $33.95 – $28.66 = $5.29
    • Total Savings Over 12 Months: $5.29 * 12 = $63.48
  • Interpretation: By purchasing her WW membership through eBay with a 20% discount, Sarah could save approximately $63.48 over the course of a year, even with minimal product purchases. This highlights the significant potential savings on recurring subscription costs.

Example 2: Balanced Savings on Membership and Products

Mark is starting his Weight Watchers journey and wants to be cost-effective. He plans to use the WW plan and buy some of the branded snack bars and meal kits. He finds both memberships and products available on eBay.

  • Inputs:
    • Monthly WW Membership Cost (Official): $23.95
    • eBay Membership Discount (%): 15%
    • eBay Product Discount (%): 25%
    • Estimated Monthly Product Spend (Official): $60
    • Calculation Period (Months): 6
  • Calculations:
    • Official Monthly Cost: $23.95 (Membership) + $60 (Products) = $83.95
    • eBay Membership Cost: $23.95 * (1 – 0.15) = $20.36
    • eBay Product Cost: $60 * (1 – 0.25) = $45.00
    • Total eBay Monthly Cost: $20.36 + $45.00 = $65.36
    • Total Monthly Savings: $83.95 – $65.36 = $18.59
    • Total Savings Over 6 Months: $18.59 * 6 = $111.54
  • Interpretation: Mark can potentially save around $111.54 over six months by utilizing eBay discounts for both his WW membership and his monthly product purchases. This demonstrates how combining savings across different aspects of the WW program can lead to substantial financial benefits.

How to Use This Weight Watchers Calculator eBay

Using the Weight Watchers Calculator eBay is straightforward. Follow these steps to estimate your potential savings:

  1. Enter Official Costs: Input the standard monthly cost of your Weight Watchers membership and your estimated monthly spending on WW branded products if purchased through official channels or retail.
  2. Input eBay Discounts: Specify the average percentage discount you expect to find on WW memberships and WW products when searching on eBay. Be realistic based on your observations or typical deals.
  3. Set Calculation Period: Choose the number of months you wish to project your savings over. This could be a few months, a year, or longer.
  4. Calculate: Click the "Calculate Savings" button.

How to read results:

  • Total Savings: This is the primary highlighted figure, showing the total amount you could save over the specified period by using eBay.
  • Membership Savings: The portion of the total savings attributed specifically to discounts on the WW membership.
  • Product Savings: The portion of the total savings attributed to discounts on WW branded products.
  • Total Official Cost: The total amount you would spend over the period without using eBay discounts.
  • Breakdown Table: Provides a more detailed monthly and period-based comparison of official costs versus eBay costs for both membership and products.
  • Chart: Visually represents the monthly cost comparison between official channels and eBay.

Decision-making guidance: Use the calculated savings to inform your purchasing decisions. If the potential savings are significant, it may be worthwhile to actively search for WW memberships and products on eBay. Remember to always verify seller reputation and product authenticity.

Key Factors That Affect Weight Watchers eBay Savings Results

Several factors can influence the accuracy and magnitude of the savings calculated by the Weight Watchers Calculator eBay:

  1. Fluctuation in eBay Discounts: The percentage discounts available on eBay for both memberships and products are not fixed. They can vary significantly based on seller promotions, demand, and the specific items listed. A higher-than-expected discount increases savings, while a lower one reduces them.
  2. Availability of WW Memberships on eBay: Official WW membership codes or subscription offers might not always be readily available or consistently priced on eBay. Their scarcity can drive up prices, reducing potential savings.
  3. Authenticity and Validity of eBay Offers: Ensure that any WW membership codes or products purchased on eBay are legitimate and valid. Counterfeit or expired codes will negate any perceived savings and could lead to disappointment or loss of funds. Always check seller reviews and return policies.
  4. Official WW Pricing Changes: Weight Watchers periodically adjusts its membership fees and the pricing of its branded products. If the official costs increase, the absolute savings might grow, assuming eBay discounts remain constant.
  5. Shipping Costs on eBay: While the calculator focuses on item price discounts, shipping fees on eBay can sometimes offset savings, especially for lower-priced items or if expedited shipping is chosen. Factor these into your final cost comparison.
  6. Seller Reputation and Reliability: Purchasing from reputable eBay sellers with high ratings minimizes the risk of receiving faulty products or invalid membership codes. Unreliable sellers can lead to disputes and potential financial loss, negating savings.
  7. Your Personal Spending Habits: The accuracy of the "Estimated Monthly Product Spend" input is crucial. If you overestimate or underestimate your actual spending on WW products, the calculated product savings will be skewed.
  8. Time Value of Money: While not explicitly calculated here, if you are saving money earlier, that money could potentially be invested or used elsewhere, generating further financial benefit over time. This calculator provides a direct savings figure, not an annualized return.

Frequently Asked Questions (FAQ)

Q1: Can I really buy Weight Watchers memberships on eBay?

A: Yes, sometimes WW membership codes or gift cards are sold on eBay. However, availability varies, and it's crucial to buy from reputable sellers to ensure the code is valid and hasn't expired or been used.

Q2: Are the discounts on eBay for WW products always significant?

A: Discounts vary widely. You might find great deals on bulk purchases or older product lines, but newer items or popular snacks might have smaller discounts. Always compare prices with official WW stores or other retailers.

Q3: Does buying WW products on eBay affect my official WW plan or app access?

A: Generally, no. Purchasing physical WW products (like bars, snacks, or cookbooks) from eBay does not impact your official WW membership or your access to the WW app and its features, unless the product itself is tied to a specific program feature.

Q4: How do I ensure the WW membership I buy on eBay is legitimate?

A: Look for sellers with high positive feedback ratings, read product descriptions carefully, check the expiration date of any code, and ensure the seller offers a return policy or guarantee. Contacting WW support beforehand to ask about third-party purchases might also provide clarity.

Q5: What if the eBay seller sends an invalid membership code?

A: If you encounter an invalid code, immediately contact the eBay seller to request a refund or a valid replacement. If the seller is unresponsive, open a case through eBay's resolution center. This is why choosing sellers with good track records and return policies is vital.

Q6: How often should I update my inputs in the calculator?

A: Update your inputs if the official WW membership cost changes, if you notice a consistent shift in the typical discounts available on eBay, or if your personal spending habits on WW products change significantly.

Q7: Does this calculator account for shipping costs on eBay?

A: The basic calculator focuses on the item price discount. You should mentally factor in shipping costs when evaluating deals on eBay. High shipping fees can sometimes negate the savings from a discounted item price.

Q8: Is it always cheaper to buy WW memberships and products on eBay?

A: Not necessarily. While eBay often offers discounts, there might be promotional periods on the official WW website or sales at authorized retailers that could match or beat eBay prices. It requires active comparison shopping.

Related Tools and Internal Resources

© 2023 Your Website Name. All rights reserved.

function validateInput(id, min, max, errorId, isPercentage = false) { var input = document.getElementById(id); var value = parseFloat(input.value); var errorElement = document.getElementById(errorId); var isValid = true; errorElement.textContent = "; // Clear previous error if (isNaN(value)) { errorElement.textContent = 'Please enter a valid number.'; isValid = false; } else if (value max) { errorElement.textContent = 'Value exceeds maximum limit.'; isValid = false; } if (isPercentage && value > 100) { errorElement.textContent = 'Percentage cannot exceed 100%.'; isValid = false; } input.style.borderColor = isValid ? '#ccc' : 'red'; return isValid; } function calculateSavings() { // Validate all inputs first var validMembershipCost = validateInput('wwMembershipCost', 0, null, 'wwMembershipCostError'); var validMembershipDiscount = validateInput('ebayMembershipDiscount', 0, 100, 'ebayMembershipDiscountError', true); var validProductDiscount = validateInput('ebayProductDiscount', 0, 100, 'ebayProductDiscountError', true); var validProductSpend = validateInput('monthlyProductSpend', 0, null, 'monthlyProductSpendError'); var validPeriod = validateInput('calculationPeriod', 1, null, 'calculationPeriodError'); if (!validMembershipCost || !validMembershipDiscount || !validProductDiscount || !validProductSpend || !validPeriod) { return; // Stop calculation if any input is invalid } var officialMembershipCost = parseFloat(document.getElementById('wwMembershipCost').value); var ebayMembershipDiscountPercent = parseFloat(document.getElementById('ebayMembershipDiscount').value) / 100; var ebayProductDiscountPercent = parseFloat(document.getElementById('ebayProductDiscount').value) / 100; var officialProductSpend = parseFloat(document.getElementById('monthlyProductSpend').value); var calculationPeriod = parseInt(document.getElementById('calculationPeriod').value); // Calculate costs var officialTotalMonthly = officialMembershipCost + officialProductSpend; var ebayMembershipCost = officialMembershipCost * (1 – ebayMembershipDiscountPercent); var ebayProductCost = officialProductSpend * (1 – ebayProductDiscountPercent); var ebayTotalMonthly = ebayMembershipCost + ebayProductCost; // Calculate savings var membershipSavings = officialMembershipCost – ebayMembershipCost; var productSavings = officialProductSpend – ebayProductCost; var totalMonthlySavings = membershipSavings + productSavings; var totalPeriodSavings = totalMonthlySavings * calculationPeriod; // Update results display document.getElementById('periodDisplay').textContent = calculationPeriod; document.getElementById('totalSavings').textContent = '$' + totalPeriodSavings.toFixed(2); document.getElementById('membershipSavings').textContent = '$' + membershipSavings.toFixed(2); document.getElementById('productSavings').textContent = '$' + productSavings.toFixed(2); document.getElementById('totalOfficialCost').textContent = 'Official Total: $' + officialTotalMonthly.toFixed(2) + '/mo'; // Update table document.getElementById('tablePeriod').textContent = calculationPeriod; document.getElementById('tableOfficialMembership').textContent = '$' + officialMembershipCost.toFixed(2); document.getElementById('tableEbayMembership').textContent = '$' + ebayMembershipCost.toFixed(2); document.getElementById('tableMembershipSavings').textContent = '$' + membershipSavings.toFixed(2); document.getElementById('tableOfficialProducts').textContent = '$' + officialProductSpend.toFixed(2); document.getElementById('tableEbayProducts').textContent = '$' + ebayProductCost.toFixed(2); document.getElementById('tableProductSavings').textContent = '$' + productSavings.toFixed(2); document.getElementById('tableTotalOfficialMonthly').textContent = '$' + officialTotalMonthly.toFixed(2); document.getElementById('tableTotalEbayMonthly').textContent = '$' + ebayTotalMonthly.toFixed(2); document.getElementById('tableTotalMonthlySavings').textContent = '$' + totalMonthlySavings.toFixed(2); document.getElementById('tableTotalOfficialPeriod').textContent = '$' + (officialTotalMonthly * calculationPeriod).toFixed(2); document.getElementById('tableTotalEbayPeriod').textContent = '$' + (ebayTotalMonthly * calculationPeriod).toFixed(2); document.getElementById('tableTotalPeriodSavings').textContent = '$' + totalPeriodSavings.toFixed(2); updateChart(officialTotalMonthly, ebayTotalMonthly, calculationPeriod); } function resetCalculator() { document.getElementById('wwMembershipCost').value = '23.95'; document.getElementById('ebayMembershipDiscount').value = '15'; document.getElementById('ebayProductDiscount').value = '10'; document.getElementById('monthlyProductSpend').value = '50'; document.getElementById('calculationPeriod').value = '12'; // Clear errors document.getElementById('wwMembershipCostError').textContent = "; document.getElementById('ebayMembershipDiscountError').textContent = "; document.getElementById('ebayProductDiscountError').textContent = "; document.getElementById('monthlyProductSpendError').textContent = "; document.getElementById('calculationPeriodError').textContent = "; // Reset input borders document.getElementById('wwMembershipCost').style.borderColor = '#ccc'; document.getElementById('ebayMembershipDiscount').style.borderColor = '#ccc'; document.getElementById('ebayProductDiscount').style.borderColor = '#ccc'; document.getElementById('monthlyProductSpend').style.borderColor = '#ccc'; document.getElementById('calculationPeriod').style.borderColor = '#ccc'; // Reset results document.getElementById('periodDisplay').textContent = '12'; document.getElementById('totalSavings').textContent = '–'; document.getElementById('membershipSavings').textContent = '–'; document.getElementById('productSavings').textContent = '–'; document.getElementById('totalOfficialCost').textContent = 'Official Total: –/mo'; // Reset table document.getElementById('tablePeriod').textContent = '12'; document.getElementById('tableOfficialMembership').textContent = '–'; document.getElementById('tableEbayMembership').textContent = '–'; document.getElementById('tableMembershipSavings').textContent = '–'; document.getElementById('tableOfficialProducts').textContent = '–'; document.getElementById('tableEbayProducts').textContent = '–'; document.getElementById('tableProductSavings').textContent = '–'; document.getElementById('tableTotalOfficialMonthly').textContent = '–'; document.getElementById('tableTotalEbayMonthly').textContent = '–'; document.getElementById('tableTotalMonthlySavings').textContent = '–'; document.getElementById('tableTotalOfficialPeriod').textContent = '–'; document.getElementById('tableTotalEbayPeriod').textContent = '–'; document.getElementById('tableTotalPeriodSavings').textContent = '–'; // Reset chart if (window.savingsChartInstance) { window.savingsChartInstance.destroy(); } var ctx = document.getElementById('savingsChart').getContext('2d'); ctx.clearRect(0, 0, ctx.canvas.width, ctx.canvas.height); // Clear canvas } function copyResults() { var totalSavings = document.getElementById('totalSavings').textContent; var membershipSavings = document.getElementById('membershipSavings').textContent; var productSavings = document.getElementById('productSavings').textContent; var totalOfficialCost = document.getElementById('totalOfficialCost').textContent; var period = document.getElementById('periodDisplay').textContent; var assumptions = "Key Assumptions:\n" + "- Calculation Period: " + period + " months\n" + "- Official Monthly Membership Cost: $" + parseFloat(document.getElementById('wwMembershipCost').value).toFixed(2) + "\n" + "- eBay Membership Discount: " + parseFloat(document.getElementById('ebayMembershipDiscount').value).toFixed(1) + "%\n" + "- Official Monthly Product Spend: $" + parseFloat(document.getElementById('monthlyProductSpend').value).toFixed(2) + "\n" + "- eBay Product Discount: " + parseFloat(document.getElementById('ebayProductDiscount').value).toFixed(1) + "%"; var resultsText = "Weight Watchers eBay Savings Results (" + period + " Months):\n\n" + "Total Estimated Savings: " + totalSavings + "\n" + "Membership Savings: " + membershipSavings + "\n" + "Product Savings: " + productSavings + "\n" + totalOfficialCost + "\n\n" + assumptions; // Use navigator.clipboard for modern browsers if (navigator.clipboard && navigator.clipboard.writeText) { navigator.clipboard.writeText(resultsText).then(function() { alert('Results copied to clipboard!'); }).catch(function(err) { console.error('Failed to copy text: ', err); // Fallback for older browsers or if clipboard API fails copyToClipboardFallback(resultsText); }); } else { // Fallback for older browsers copyToClipboardFallback(resultsText); } } // Fallback copy function using document.execCommand function copyToClipboardFallback(text) { var textArea = document.createElement("textarea"); textArea.value = text; textArea.style.position = "fixed"; // Avoid scrolling to bottom textArea.style.left = "-9999px"; textArea.style.top = "-9999px"; document.body.appendChild(textArea); textArea.focus(); textArea.select(); try { var successful = document.execCommand('copy'); var msg = successful ? 'Results copied to clipboard!' : 'Failed to copy results.'; alert(msg); } catch (err) { console.error('Fallback: Oops, unable to copy', err); alert('Failed to copy results. Please copy manually.'); } document.body.removeChild(textArea); } var savingsChartInstance = null; function updateChart(officialMonthly, ebayMonthly, period) { var ctx = document.getElementById('savingsChart').getContext('2d'); // Destroy previous chart instance if it exists if (savingsChartInstance) { savingsChartInstance.destroy(); } // Create new chart instance savingsChartInstance = new Chart(ctx, { type: 'bar', // Use bar chart for comparison data: { labels: ['Monthly Cost'], datasets: [{ label: 'Official Cost', data: [officialMonthly], backgroundColor: 'rgba(0, 74, 153, 0.7)', // Primary color borderColor: 'rgba(0, 74, 153, 1)', borderWidth: 1 }, { label: 'eBay Cost', data: [ebayMonthly], backgroundColor: 'rgba(40, 167, 69, 0.7)', // Success color borderColor: 'rgba(40, 167, 69, 1)', borderWidth: 1 }] }, options: { responsive: true, maintainAspectRatio: false, // Allow custom height/width scales: { y: { beginAtZero: true, title: { display: true, text: 'Cost ($)' } } }, plugins: { title: { display: true, text: 'Monthly Cost Comparison: Official vs. eBay' }, legend: { position: 'top', } } } }); } // Initial calculation on page load document.addEventListener('DOMContentLoaded', function() { calculateSavings(); // Add event listeners for input changes to update results in real-time var inputs = document.querySelectorAll('.loan-calc-container input'); for (var i = 0; i < inputs.length; i++) { inputs[i].addEventListener('input', calculateSavings); } // FAQ toggle functionality var faqItems = document.querySelectorAll('.faq-item h3'); for (var i = 0; i < faqItems.length; i++) { faqItems[i].addEventListener('click', function() { var parent = this.parentElement; parent.classList.toggle('open'); }); } });

Leave a Comment