Profit Margin Calculator and Pricing Guide

What Is Profit Margin?

Profit margin shows how much profit you earn relative to the selling price. It is one of the most important indicators for pricing and cost management.

Formula for Profit Margin

Profit Margin = (Profit ÷ Selling Price) × 100

A common misunderstanding is to treat a simple markup as a profit margin. For example, "Cost × 1.3 = 30% profit" actually means a 30% markup on cost, not a 30% profit margin.

Example: Calculating Profit Margin from Selling Price

If an item costs 100 and you sell it for 130, the profit is 30. The profit margin is approximately 23%.

Example: Calculating Selling Price from Profit Margin

If you want to secure a 30% profit margin with a cost of 100, the required selling price is about 143.

A Quick Way to Calculate a 30% Profit Margin (Divide by 0.7)

To achieve a 30% profit margin, the exact formula is "Selling Price = Cost ÷ 0.7." In practice, it is very convenient to remember: divide the cost by 0.7.

100 ÷ 0.7 ≒ 142.857...

This means that selling the item for about 143 will give you a 30% profit margin.

The "0.7" comes from subtracting the profit margin (0.3) from 1. For example, for a 25% margin you divide by 0.75, and for a 40% margin you divide by 0.6.

Difference Between Profit Margin and Gross Margin

Profit margin is calculated as "Profit ÷ Selling Price." Gross margin (or gross profit ratio) is calculated as "Profit ÷ Cost." Because the base is different, it is important to distinguish and use them correctly.

Summary

Understanding profit margin correctly is essential for pricing and cost control. With the calculator and quick reference table generator on this page, you can check profit margins and selling prices quickly and accurately based on your actual costs.