Profit Margin

What Is Profit Margin?

Profit margin is a ratio that expresses profit as a percentage of revenue, also called sales. It answers a simple question: for every dollar a company brings in from sales, how many cents are left over as profit? A higher percentage generally means the company keeps more of each dollar after paying its costs.

Profit margin is not a single number. Analysts usually look at several versions, each subtracting a different set of costs from revenue. The most common are the gross profit margin, which deducts only the direct costs of producing goods or services, the operating profit margin, which also deducts day-to-day operating expenses such as salaries and rent, and the net profit margin, which deducts every expense including interest and taxes.

How It Is Calculated

The basic formula is:

Profit Margin = Profit ÷ Revenue × 100

For example, if a company has $500,000 in revenue and $75,000 in net profit, its net profit margin is 15 percent. The same company might show a higher gross margin, since gross profit is measured before operating and other expenses are subtracted.

Why It Matters to Investors

Profit margins help investors judge how well a company controls its costs and prices its products. Comparing margins over several years can reveal whether a business is becoming more efficient or under pressure from rising costs or competition. Margins are most useful when compared with companies in the same industry, because typical margins differ widely between sectors. A grocery chain often operates on thin margins, while a software company may have much higher ones.

Limitations

A single period's margin can be misleading. One-time gains or losses, accounting choices, and seasonal swings can all distort the figure. Margins also say nothing about how much money a company has invested to earn its profit, which is why they are often read alongside other measures such as return on equity or free cash flow.