Profit Margin Calculator: A Practical Guide
Use the Profit Margin Calculator to express profit as a share of revenue. Enter revenue and the corresponding cost for the same sale or reporting period. What counts as cost determines whether the result resembles a gross margin or another margin measure.
How to Use Profit Margin Calculator
- Enter Revenue.
- Enter the associated Cost.
- Select Calculate margin.
- Read the profit amount and margin percentage.
Revenue Is the Denominator
Profit = revenue − cost. Margin = profit ÷ revenue × 100. Revenue must be positive; cost can be zero.
This tool does not classify expenses. If you include only direct product cost, do not label the result net margin. Include the relevant operating expenses, interest and other costs only when your reporting definition calls for them.
Worked Example
Revenue of 800 and cost of 600 produce profit of 200. Margin is 200 ÷ 800 × 100 = 25%.
Markup for the same transaction is 200 ÷ 600 × 100 = 33.33%. The profit amount is identical but the percentage base changes.
Compare profit relative to cost: use the Markup Calculator.
Estimate units required to cover fixed costs: use the Break Even Calculator.
Checks and Common Mistakes
- Use matching periods and currency.
- Do not enter profit in the cost field.
- Revenue and cash received may differ under accounting rules.
- A negative margin indicates entered cost exceeds revenue.
Frequently Asked Questions
Is margin the same as markup?
No. Margin divides profit by revenue; markup divides profit by cost.
Can the result be negative?
Yes. Revenue of 100 and cost of 120 produce a -20% margin.
Does it calculate tax?
No. It performs arithmetic on your selected revenue and cost figures. Determine the correct accounting treatment separately.
Related Tools for the Next Step
- Markup Calculator: Compare profit relative to cost.
- Break Even Calculator: Estimate units required to cover fixed costs.
- ROI Calculator: Measure return relative to an initial investment.
- Discount Calculator: Explore a reduction in selling price.
Reference
Further reading: U.S. Small Business Administration: break-even analysis.