Gross Margin Calculator

Gross Margin Calculator

Calculate profit margins and markups instantly

Gross Profit: $0.00
Gross Margin (%): 0.00%
Markup (%): 0.00%

Understanding Gross Margin

Gross margin is a critical financial metric that represents the percentage of total sales revenue that a company retains after incurring the direct costs associated with producing the goods and services sold by the company. It essentially measures how efficiently a company uses its resources to produce its core products.

How is Gross Margin Calculated?

The formula for Gross Margin is straightforward but powerful. To find the margin, you first subtract the Cost of Goods Sold (COGS) from your Total Revenue to find the Gross Profit. You then divide that Gross Profit by the Total Revenue.

The Formula:
Gross Margin (%) = ((Revenue – COGS) / Revenue) * 100

Margin vs. Markup

While often used interchangeably, margin and markup are different:

  • Gross Margin is the profit as a percentage of the selling price.
  • Markup is the amount added to the cost price of goods to cover overheads and profit, expressed as a percentage of the cost.

Real-World Example

Imagine you run a boutique coffee shop. You sell a specialized blend for $25.00 (Revenue). The cost of the coffee beans, the cup, and the milk totals $10.00 (COGS).

  • Gross Profit: $25.00 – $10.00 = $15.00
  • Gross Margin: ($15.00 / $25.00) * 100 = 60%
  • Markup: ($15.00 / $10.00) * 100 = 150%

This means for every dollar of sales, you keep $0.60 to pay for fixed expenses like rent, salaries, and marketing.

function calculateGrossMargin() { var revenue = parseFloat(document.getElementById('revenue').value); var cogs = parseFloat(document.getElementById('cogs').value); var resultDiv = document.getElementById('result-section'); var resGrossProfit = document.getElementById('res-gross-profit'); var resMarginPercent = document.getElementById('res-margin-percent'); var resMarkupPercent = document.getElementById('res-markup-percent'); if (isNaN(revenue) || isNaN(cogs) || revenue 0) { markupPercentage = (grossProfit / cogs) * 100; } else { markupPercentage = 0; // Prevent infinite markup if COGS is 0 } resGrossProfit.innerHTML = '$' + grossProfit.toLocaleString(undefined, {minimumFractionDigits: 2, maximumFractionDigits: 2}); resMarginPercent.innerHTML = marginPercentage.toFixed(2) + '%'; resMarkupPercent.innerHTML = (cogs > 0) ? markupPercentage.toFixed(2) + '%' : 'N/A (Zero Cost)'; resultDiv.style.display = 'block'; }

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