UtilityBase2 min read
Profit Margin vs. Markup: What's the Difference?
Margin and markup use the same two numbers but divide by different ones — confusing them can quietly cost you money on every sale. Here's how each works and how to convert between them.
Same profit, different denominator
Both terms describe the gap between what something costs you and what you sell it for. The difference is what they divide that gap by. Markup is profit as a percentage of cost. Margin is profit as a percentage of the selling price.
Because the selling price is always larger than the cost, the margin percentage is always smaller than the markup percentage for the same sale. Treating them as interchangeable is how businesses accidentally underprice.
A worked example
Say an item costs you $10 and you sell it for $15. Your profit is $5. The markup is $5 / $10 = 50%. The margin is $5 / $15 = 33.3%. Same dollar profit, two very different percentages.
This is why a supplier quoting 'a 50% markup' and a report showing 'a 33% margin' can describe the exact same transaction. If you set prices by applying a markup but track performance by margin, you need to know both.
Converting between the two
You can move between margin and markup with simple formulas.
- 1To get selling price from cost and markup: price = cost x (1 + markup%).
- 2To get margin from markup: margin% = markup / (1 + markup).
- 3To get markup from margin: markup% = margin / (1 - margin).
- 4To find margin directly: margin% = (price - cost) / price x 100.
- 5Sanity-check: margin should always come out lower than markup.
Frequently asked questions
Which should I use to set prices?
Most retailers set prices with markup (it starts from the cost you know) but judge profitability with margin (it reflects the share of each sale you keep). The key is not to confuse the two — pricing for a '30% profit' means very different things depending on which you mean.
Why is margin always smaller than markup?
Because margin divides the profit by the larger number (selling price) while markup divides by the smaller number (cost). The same $5 profit is a smaller slice of a $15 price than of a $10 cost.
Can margin be more than 100%?
No. Margin is a share of the selling price, so it can approach but never reach 100% (that would mean the item cost you nothing). Markup has no ceiling — a $10 item sold for $40 is a 300% markup but a 75% margin.
Tools mentioned in this guide
Margin Calculator
Profit margin vs markup done right — and the price for any target margin.
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Percentage Calculator
What is X% of Y, percentage change, and 'X is what % of Y' — solved live.
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Sales Tax Calculator
Add sales tax to a price or back it out of a total — with state base rates.
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