Skip to main content
MathKit

Profit Margin Calculator

Compute gross profit margin: ((revenue − cost) ÷ revenue) × 100.

Calculator

Use the Profit Margin Calculator

Result

—

Formula

margin % = ((revenue − cost) ÷ revenue) × 100

Step-by-step

  1. 1

    Enter revenue

    Total sales amount.

  2. 2

    Enter cost

    Total cost of goods/services.

Worked example

Example input: revenue: 1000, cost: 650

Result: 35

Related tools

Frequently asked questions

What counts as a good profit margin?

It depends entirely on the industry: grocery stores often run 2-5%, manufacturing sits around 10-25%, and software businesses can exceed 70%. Compare against companies in your own field instead of chasing a single universal number. Your own cost base matters most.

How is margin different from markup?

Margin measures profit as a share of the selling price, markup measures it as a share of the cost. The same 10-dollar item sold at 15 shows a 33.3% margin but a 50% markup — one deal, two accounting viewpoints.

Can the margin go above 100%?

No — margin is (price − cost) ÷ price, and profit can never exceed the selling price itself. The only way to approach 100% is a cost near zero, like purely digital products with no per-unit expense.

Useful links