Markup vs margin: what is the difference?
Markup and margin both describe profit, but they measure it against different things. Markup is profit as a percentage of your cost. Margin is profit as a percentage of your selling price. Because cost is always smaller than price, the markup percentage is always larger than the margin percentage for the same product — and that gap is where a lot of accidental underpricing happens.
A worked example
Take an item that costs you 10 to make and sells for 15. The profit is 5. Measure that 5 against the cost of 10 and you get a 50 percent markup. Measure the same 5 against the price of 15 and you get a 33 percent margin. Same product, same profit, two very different-looking numbers.
| Figure | Calculation | Result |
|---|---|---|
| Cost | — | 10.00 |
| Price | cost × 1.5 | 15.00 |
| Profit | price − cost | 5.00 |
| Markup | 5 ÷ 10 | 50% |
| Margin | 5 ÷ 15 | 33% |
How to convert between them
The two are linked by a simple pair of formulas, using decimals:
- Markup to margin: margin = markup ÷ (1 + markup). A 0.5 markup becomes 0.5 ÷ 1.5 = 0.333, a 33 percent margin.
- Margin to markup: markup = margin ÷ (1 − margin). A 0.333 margin becomes 0.333 ÷ 0.667 = 0.5, a 50 percent markup.
Which one should you use?
Neither is more correct — they are two views of the same thing. In practice:
- Markup is intuitive when you price up from a known cost, which is how most makers and tradespeople work. "Cost times two" is a markup mindset.
- Margin is the language of profitability and appears on most financial reports, so it is useful for comparing products or judging the health of the business overall.
The one rule that matters is consistency. Decide which you are quoting, know how to convert to the other, and never plug a margin figure into a markup calculation by mistake. Do that and your prices will always reflect the profit you actually intended to make.