How to Calculate & Improve Profit Margin

Everything small business owners need to know about margins

The Three Profit Margins

Profit margin tells you how much of every dollar in revenue you keep as profit. There are three levels, each revealing something different about your business health.

Gross Profit Margin

Gross margin = (Revenue − Cost of Goods Sold) ÷ Revenue

This measures profitability before overhead. It tells you how efficiently you produce or source your products. A 60% gross margin means 60 cents of every revenue dollar is available after direct costs to cover overhead and profit.

Operating Profit Margin

Operating margin = (Revenue − COGS − Operating Expenses) ÷ Revenue

This includes overhead like rent, salaries, and marketing. It shows how efficiently you run the overall business, not just production.

Net Profit Margin

Net margin = (Revenue − All Costs) ÷ Revenue

The bottom line after everything: COGS, overhead, taxes, and interest. This is what's actually left for the business owner.

Calculate all three margins from your numbers.

Open Profit Margin Calculator →

Industry Benchmarks

IndustryGross MarginNet Margin
Software / SaaS70–85%20–40%
Professional Services50–70%15–25%
E-commerce / Retail25–50%2–10%
Restaurants60–70%3–9%
Manufacturing25–40%5–10%
Construction20–35%5–10%

How to Improve Margins

There are only three levers: increase prices, reduce costs, or change your product mix to favor higher-margin items.

The most common margin mistake: focusing on revenue growth while ignoring margin erosion. Growing revenue 20% while margin drops 5% can actually reduce total profit.

Find your break-even point to know the minimum you need to sell.

Open Break-Even Calculator →

Frequently Asked Questions

What's a healthy net profit margin?
It varies dramatically by industry. 5%% is great for retail but poor for software. Compare to your industry benchmarks, not a universal number. If you're above the industry median, you're doing well.
Should I focus on margin or revenue?
Both matter, but margin is the one most small businesses neglect. $1M in revenue at 5%% margin = $50K profit. $500K at 20%% margin = $100K profit. Revenue is vanity; profit is sanity.