Margin Calculator
Cost, margin %, revenue, and profit — solve any two in your browser.
Runs in your browser — files stay on your device.
Results
Profit$20.00
Margin (%)40.0%
Margin on revenue
Profit = revenue − cost. Margin % = 100 × profit ÷ revenue. Edit any two fields (last two edited) to solve the rest.
Model: reference implementation.