How it works
Profit Margin Calculator formula
(Selling price − total cost) ÷ selling price × 100
Divides unit profit by selling price to calculate margin.
Business calculator
Profit Margin Calculator
Enter selling price and total unit cost to calculate profit margin and related selling metrics.
STEP 1
Enter your values
RESULT
40%Profit margin
Revenue-based margin from the entered price and cost.
Profit per unit₩8,000
Cost-based markup66.67%
Cost ratio60%
Include platform, payment, delivery, advertising and tax costs to approach the true margin.
Example
Example calculation
A KRW 20,000 item with KRW 12,000 total cost earns KRW 8,000 at a 40% margin.
- Standard
- Revenue-based profit margin
- Last reviewed
- August 16, 2026
Questions
Profit Margin Calculator FAQ
What should I enter in the Profit Margin Calculator?
Enter the requested values and the result will update immediately. Review the formula, assumptions and exclusions below the result.
Is the result an official amount?
No. It is an estimate based on the entered conditions and stated assumptions. Confirm important tax, insurance, employment or financial decisions with the relevant institution or a qualified professional.
Are Korean rules used?
This calculator uses the general formula or reference source shown on the page.
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