Margin vs Percentage: What's the difference?
Profit margin is a specific type of percentage: it measures profit as a percentage of revenue. General percentages can measure any ratio. Example: selling a GBP 100 item that cost GBP 60 gives a 40% profit margin (GBP 40 / GBP 100). Markup percentage of the same item is 66.7% (GBP 40 / GBP 60). They use the same numbers but different denominators.
What Is Profit Margin?
Profit margin measures profit as a percentage of revenue. It answers: after selling this product or service, what share of the sale price remains as profit before the costs you choose to exclude?
(Revenue - Cost) / Revenue x 100
Example: revenue GBP 200 and cost GBP 120 produces GBP 80 profit. Margin = GBP 80 / GBP 200 x 100 = 40%.
What Is Markup Percentage?
Markup measures profit as a percentage of cost. It answers a different question: how much did you add on top of the cost to set the selling price?
(Revenue - Cost) / Cost x 100
Using the same GBP 200 revenue and GBP 120 cost, markup = GBP 80 / GBP 120 x 100 = 66.7%. Same profit, different denominator, different percentage.
Margin vs Markup - Comparison Table
| Profit | Margin % | Markup % |
|---|---|---|
| GBP 20 on GBP 100 sale (GBP 80 cost) | 20% | 25% |
| GBP 40 on GBP 100 sale (GBP 60 cost) | 40% | 66.7% |
| GBP 50 on GBP 100 sale (GBP 50 cost) | 50% | 100% |
| GBP 75 on GBP 100 sale (GBP 25 cost) | 75% | 300% |
Why Does the Difference Matter?
Retail benchmarks usually talk about gross margin, not markup. If you want a 40% margin, marking cost up by 40% is not enough; you need about 66.7% markup. That common mistake can leave a business undercharging by roughly 26% versus the intended selling price.
Pricing teams often start with markup because cost is known first. Finance teams usually report margin because it compares profit with revenue. Good operators check both.
Other Percentages Confused With Margin
- Gross margin looks at revenue minus cost of goods sold.
- Net margin includes operating expenses, interest, tax, and other costs.
- Operating margin focuses on operating profit before financing and tax effects.
- EBITDA margin uses earnings before interest, tax, depreciation, and amortization.
Quick Reference - Convert Between Margin and Markup
Markup to Margin: Margin = Markup / (1 + Markup)
Margin to Markup: Markup = Margin / (1 - Margin)
Use Our Free Profit Margin Calculator
To avoid denominator mistakes, run the numbers both ways. Calculate margin and markup instantly.