Margin vs profit vs markup: the three are not the same
Three words that get used interchangeably in casual business talk, and shouldn't be. They describe the same transaction from three different angles, and treating them as synonyms is how pricing decisions go sideways.
The three terms, in one minute
Profit is a dollar amount: revenue minus expenses. If you sell something for $100 that cost $60, the profit is $40.
Margin is profit expressed as a percentage of revenue. Same $40 profit on $100 revenue = 40% margin.
Markup is profit expressed as a percentage of cost. Same $40 profit on $60 cost = 66.67% markup.
All three describe the same single transaction. They're not interchangeable. Confusing them costs real money.
Why three different ways to say the same thing?
Each answers a different question.
- Profit answers "how much money did I make on this?" — the absolute number.
- Margin answers "what percentage of the sale did I keep?" — useful for comparing across products and businesses of different sizes.
- Markup answers "how much did I add to cost?" — useful for setting prices from known costs.
A $50,000 deal and a $50 transaction can both have a 40% margin. Profit alone wouldn't tell you they're equally efficient. That's why finance speaks in percentages, not raw dollars.
The three percentages, side by side
| Profit | Margin | Markup | |
|---|---|---|---|
| Type | Dollar amount | Percentage | Percentage |
| Denominator | — | Selling price | Cost |
| Used for | Reporting actuals | Comparing & benchmarking | Setting prices |
| Maximum | Unlimited | 100% (capped) | Unlimited |
| Example ($60 cost, $100 price) | $40 | 40% | 66.67% |
The same transaction, three views
A bookstore buys a hardcover from a publisher for $15 and sells it for $25.
- Profit: $25 − $15 = $10 per book
- Margin: $10 ÷ $25 = 40% (40% of the sale is profit)
- Markup: $10 ÷ $15 = 66.67% (the bookstore added 66.67% to its cost)
All three are correct. They describe the same $10. But:
- The bookstore reports the 40% margin to investors.
- The bookstore prices using a 66.67% markup applied to wholesale cost.
- The accountant tracks the $10 profit to add to monthly totals.
Gross profit vs gross margin (a related confusion)
One more terminology snag: "gross profit" and "gross margin" don't mean the same thing either.
- Gross profit is a dollar amount: revenue minus cost of goods sold (COGS).
- Gross margin is gross profit as a percentage of revenue.
So a company with $1M revenue and $400K COGS has $600K gross profit and 60% gross margin. Both correct, different units.
Net profit vs net margin (same pattern)
Same relationship, applied to after-everything numbers:
- Net profit = revenue − all expenses (COGS + operating expenses + interest + taxes). Dollar amount.
- Net margin = net profit ÷ revenue × 100. Percentage.
A company with $1M revenue and $80K net profit has an 8% net margin.
The confusing case: "what's the markup on profit?"
People sometimes say things like "we made a 40% profit on that deal." That's ambiguous: did they mean 40% margin or 40% markup? Different prices.
If a $60 cost was sold for "40% profit margin," the price was $100. (Profit = 40% of $100 = $40.)
If a $60 cost had "40% markup," the price was $84. (Markup = 40% of $60 = $24.)
Same words, different numbers. When someone is loose with "profit," ask which percentage they mean.
Quick reference card
Memorize these and you'll never get tripped up:
- Profit = Revenue − Costs (dollars)
- Margin = Profit ÷ Revenue × 100 (percent of sale)
- Markup = Profit ÷ Cost × 100 (percent of cost)
- Margin caps at 100%; markup doesn't
- 50% markup = 33% margin, not 50% margin