Margin vs. Markup: The Difference That Quietly Costs You Money

Last updated: 2026-06-13

Markup and margin measure the same profit against different bases, and confusing them makes you charge too little. Markup is profit as a percentage of cost; margin is profit as a percentage of the selling price. A 25% markup is only a 20% margin — so a business that 'wants 30% margin' but applies a 30% markup leaves money on the table on every sale.

The two formulas

Markup % = (price − cost) ÷ cost. It answers: how much did I add on top of what I paid?
Margin % = (price − cost) ÷ price. It answers: how much of what I charged is profit?

The dollar profit is identical either way — it is the denominator that differs. Because price is always larger than cost, the margin percentage is always smaller than the markup percentage for the same sale.

Try the toolProfit Margin & Markup CalculatorCalculate profit margin and markup from cost and price — or work backwards from a target margin to the exact price you should charge.

A worked example

Buy an item for $80 and sell it for $100. Profit is $20. As markup that is $20 ÷ $80 = 25%. As margin that is $20 ÷ $100 = 20%. Same $20, two different percentages — and if you priced expecting 25% to mean margin, you just earned less than you planned.

Markup-to-margin reference

15% markup = 13% margin
25% markup = 20% margin
50% markup = 33.3% margin
100% markup = 50% margin
200% markup = 66.7% margin

Why it matters beyond a single sale

Pricing on markup while reporting on margin makes whole product lines look more profitable than they are, and the gap compounds across volume. The error also creeps into anything derived from price — sales commissions and freelance rates included.

If you pay sellers a cut of revenue, model it with the commission calculator so the payout is taken from the right base. And when you set your own rate, the freelance rate calculator starts from the income you need rather than a markup guess.

Frequently asked questions

What is the difference between margin and markup?

Both use the same dollar profit. Markup divides it by cost; margin divides it by selling price. Because price exceeds cost, margin % is always lower than markup % for the same sale.

Why is 25% markup only 20% margin?

On an $80 cost, a 25% markup adds $20 for a $100 price. That $20 is 25% of the $80 cost but only 20% of the $100 price — and margin is measured against price.

How do I price for a target margin?

Divide cost by (1 − target margin). For a 30% margin on an $80 item: 80 ÷ 0.70 = $114.29. Applying a 30% markup instead would under-price it at $104.

Which should I use for pricing?

Most retailers and finance teams reason in margin because it ties directly to profitability as a share of revenue. Just be consistent and never apply a markup percentage where you meant margin.