Gross margin is not markup
Two similar-looking percentages that answer different business questions.
Label the denominator in your sheet. Use consistent cost categories.
Know the denominator
Markup divides gross profit by cost. Gross margin divides gross profit by revenue. With $600 of direct cost and a $1,000 selling price, gross profit is $400. Markup is 66.7%, while gross margin is 40%. Both describe the same job, but they are not interchangeable.
Choose the right formula
To price from a target gross margin, divide direct cost by one minus the target margin as a decimal. To price from a markup, multiply direct cost by one plus the markup. Label your spreadsheet columns clearly so someone cannot mistake one percentage for the other.
Keep gross and net separate
Gross profit still has to support overhead and other expenses. A job with a healthy gross margin can belong to an unprofitable business if selling costs, administration, or unused capacity are too high. Compare projects using consistent definitions of direct costs.
Use it in a review
Pick three completed jobs and calculate estimated versus actual gross margin. Look for the underlying difference in hours, materials, discounts, or rework. The percentage is a signal to investigate, not a complete explanation by itself.
One project, two percentages
Illustrative example—not a reported client result.
| Input or decision | Illustrative application |
|---|---|
| Revenue | $1,000 |
| Direct cost | $600 |
| Gross profit | $400 |
| Markup | $400 ÷ $600 = 66.7% |
| Gross margin | $400 ÷ $1,000 = 40% |
Translate the instruction before changing the price
Illustrative working example, not a reported client result.
A team member is told to “add thirty percent” to a $700 cost. A 30% markup produces a $910 price and $210 gross profit. A 30% margin requires a $1,000 price and $300 gross profit. Both calculations are internally correct, but they answer different questions. The gap comes from the denominator: markup compares profit with cost; margin compares profit with revenue.
Write the intended measure on the estimate rather than using the word percentage alone. Then check that everyone includes the same costs. If one estimate includes delivery labor and another excludes it, translating markup to margin does not solve the underlying inconsistency.
| Checkpoint | Working record |
|---|---|
| Cost | Use $700 for the same unit of work. |
| 30% markup | Price $910; gross profit $210; margin about 23.1%. |
| 30% margin | Price $1,000; gross profit $300; markup about 42.9%. |
| Quote check | Label the percentage and confirm which costs are included. |
A higher gross margin does not automatically mean a better job. Compare total contribution, scarce delivery hours, payment timing, and the effort needed to win the work.
How do I convert a markup percentage to margin?
Divide markup expressed as a decimal by one plus that decimal. A 0.30 markup gives 0.30 / 1.30, or about 23.1% margin. The margin-and-markup calculator also shows both measures from cost and price.
Use the related business calculator to test the numerical assumptions where applicable. Record nonfinancial decisions in your action plan.
Put the idea to work.
- Label the denominator in your sheet.
- Use consistent cost categories.
- Keep gross profit separate from net profit.
One more question
Can gross margin exceed 100%?
With positive revenue and nonnegative direct costs, it cannot. A result above 100% is a sign to inspect the inputs, adjustments, or formula.
AI-assisted educational content. Examples are illustrative, not reported client results. Editorial standards.