Margin Calculator

Calculate profit margin from cost and selling price. Analyze your business profitability with margin and markup comparisons.

Frequently Asked Questions

What is profit margin?
Profit margin is the percentage of revenue that exceeds the cost. Margin = (Selling Price - Cost) / Selling Price × 100.
What is the difference between margin and markup?
Margin is profit as a percentage of selling price. Markup is profit as a percentage of cost. The same transaction always has a higher markup than margin.
What is a good profit margin?
It varies by industry: retail 20-50%, food service 60-70%, software 70-90%. Consider competitive landscape and market conditions.
Updated 2026 — latest rates