Understanding the Return on Investment (ROI) is crucial for any stock market investor. ROI is a performance measure used to evaluate the efficiency and profitability of an investment. It's typically expressed as a percentage and is calculated by dividing the net profit of an investment by its cost. A higher ROI indicates a more desirable investment.
The basic formula for ROI is:
ROI = (Net Profit / Cost of Investment) * 100
Where:
Net Profit = Selling Price of Investment – Purchase Price of Investment
Cost of Investment = Purchase Price of Investment + Any associated fees (e.g., brokerage fees, commissions)
This calculator will help you quickly determine the ROI of your stock investments, taking into account the initial purchase price, any additional fees, and the final selling price. This will allow you to compare different investment opportunities and make more informed decisions.
Calculate Your Stock Investment ROI
#roi-calculator-wrapper {
font-family: sans-serif;
max-width: 800px;
margin: 20px auto;
padding: 20px;
border: 1px solid #ddd;
border-radius: 8px;
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#roi-calculator-wrapper article {
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line-height: 1.6;
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#roi-calculator-wrapper h1, #roi-calculator-wrapper h2 {
color: #333;
margin-bottom: 15px;
}
#roi-calculator-wrapper ul {
margin-bottom: 15px;
}
#roi-calculator {
background-color: #f9f9f9;
padding: 20px;
border-radius: 5px;
border: 1px solid #eee;
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.form-group {
margin-bottom: 15px;
display: flex;
flex-direction: column;
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.form-group label {
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border-radius: 4px;
font-size: 1rem;
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#roi-calculator button {
background-color: #007bff;
color: white;
padding: 12px 20px;
border: none;
border-radius: 4px;
cursor: pointer;
font-size: 1.1rem;
transition: background-color 0.3s ease;
}
#roi-calculator button:hover {
background-color: #0056b3;
}
.result {
margin-top: 20px;
padding: 15px;
background-color: #e9ecef;
border: 1px solid #ced4da;
border-radius: 4px;
font-size: 1.1rem;
color: #495057;
text-align: center;
}
function calculateROI() {
var purchasePriceInput = document.getElementById("purchasePrice");
var investmentFeesInput = document.getElementById("investmentFees");
var sellingPriceInput = document.getElementById("sellingPrice");
var roiResultDiv = document.getElementById("roiResult");
var purchasePrice = parseFloat(purchasePriceInput.value);
var investmentFees = parseFloat(investmentFeesInput.value);
var sellingPrice = parseFloat(sellingPriceInput.value);
if (isNaN(purchasePrice) || isNaN(investmentFees) || isNaN(sellingPrice)) {
roiResultDiv.innerHTML = "Please enter valid numbers for all fields.";
return;
}
if (purchasePrice <= 0) {
roiResultDiv.innerHTML = "Purchase Price must be greater than 0.";
return;
}
var costOfInvestment = purchasePrice + investmentFees;
var netProfit = sellingPrice – costOfInvestment;
var roi = (netProfit / costOfInvestment) * 100;
if (isNaN(roi)) {
roiResultDiv.innerHTML = "Cannot calculate ROI with the given values. Ensure cost of investment is not zero.";
return;
}
roiResultDiv.innerHTML = "Your Investment ROI: " + roi.toFixed(2) + "%";
}