Finance
6 min read

How to Calculate Profit Margin: A Complete Guide

Learn how to calculate gross profit margin, net profit margin, and markup. Includes formulas, examples, and tips for improving your margins.

October 1, 2026

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Understanding profit margin is essential for any business owner, entrepreneur, or investor. It tells you how much profit you make on each dollar of revenue. In this guide, we'll break down everything you need to know about calculating profit margin.

What is Profit Margin?

Profit margin is a financial metric that measures the percentage of revenue that exceeds the costs of production. It's one of the most important indicators of a company's financial health and profitability.

Profit Margin Formula

The basic formula for calculating profit margin is:

Profit Margin = ((Revenue - Cost) / Revenue) × 100

For example, if you sell a product for $500 and it costs $300 to produce, your profit margin is ((500 - 300) / 500) × 100 = 40%.

Gross Profit Margin vs. Net Profit Margin

There are two main types of profit margin you should know:

  • •Gross Profit Margin: Uses revenue minus cost of goods sold (COGS). It shows how efficiently you produce goods.
  • •Net Profit Margin: Uses revenue minus ALL expenses (including taxes, interest, and operating costs). It shows your overall profitability.

Profit Margin vs. Markup

A common confusion is between margin and markup. Margin is profit as a percentage of revenue, while markup is profit as a percentage of cost. Using the same example: markup = ((500-300)/300) × 100 = 66.7%.

You can use our free Profit Margin Calculator to instantly calculate your margins and markup.

What is a Good Profit Margin?

What counts as a "good" profit margin varies by industry. Generally:

  • •Retail: 2-5% net margin
  • •Software/SaaS: 15-30% net margin
  • •Consulting: 15-25% net margin
  • •Manufacturing: 8-12% net margin

How to Improve Your Profit Margin

  • •Increase prices strategically
  • •Reduce cost of goods sold by negotiating with suppliers
  • •Optimize operations to reduce overhead
  • •Focus on high-margin products or services
  • •Improve customer retention to increase lifetime value

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