What is margin of profit and how do you calculate it

Margin of profit is the share of revenue a business keeps as profit after costs, shown as a percentage. Calculate it by subtracting costs from revenue, dividing the result by revenue and multiplying by 100. Gross, operating and net margins measure profit after progressively more costs, so each answers a different question.

A raw profit figure tells you little on its own. The same profit can be excellent for a small business and poor for a large one. Margin fixes that by putting profit on a common scale. This article covers the three margin types, the calculation, a worked example and how to judge your result.

What is profit margin in business?#

Profit margin is profit expressed as a percentage of revenue. It shows how many pence of every pound of sales you keep once costs are paid.

A percentage lets you compare. You can set this quarter against last quarter, one product against another, and your business against others in your industry, whatever their size.

Margin is not the same as cash in the bank. A business can post a healthy margin and still run short of cash if customers pay late. If you want help tracking this, Bluprnts offers planning tools for small businesses.

Gross, operating and net margin: profit margin vs gross margin#

Profit margin vs gross margin comes down to how many costs you count. Gross margin counts the fewest. Net margin counts them all.

Gross margin alone can mislead. A business with a high gross margin can still lose money once salaries, rent and marketing come out. The gross margin ratio shows what is left to pay for everything else. It does not show what you keep.

How to calculate profit margin step by step#

To calculate profit margin, work down from gross to net. Each step uses the same formula: profit divided by revenue, multiplied by 100. Only the profit figure changes.

1. Calculate gross margin to measure production efficiency: (revenue − direct costs) ÷ revenue × 100.
2. Calculate operating margin to assess core efficiency after day-to-day costs: (revenue − direct costs − operating costs) ÷ revenue × 100. See operating margin for more.
3. Calculate net margin to see what you keep after all expenses and tax: net profit ÷ revenue × 100.

Do them in that order. If gross margin is weak, no amount of overhead trimming will rescue the later figures.

What is margin of profit? A worked example#

The numbers below are invented for illustration. They are not sourced data. For more on margin basics, see the Bluprnts learn hub.

A business sells £200,000 of goods in a year. Direct costs are £120,000. Gross profit is £200,000 − £120,000, which is £80,000. Gross margin is £80,000 ÷ £200,000 × 100, which is 40%.

Operating costs (salaries, rent, marketing) come to £50,000. Add £10,000 of depreciation, the cost of equipment spreading across its useful life. Operating profit is £80,000 − £60,000, which is £20,000. Operating margin is £20,000 ÷ £200,000 × 100, which is 10%.

Interest of £4,000 and tax of £3,000 come next. Net profit is £20,000 − £7,000, which is £13,000. Net margin is £13,000 ÷ £200,000 × 100, which is 6.5%.

The gross margin shrank from the first figure to the last. Depreciation, interest and tax are the costs people forget. They never appear in a quick sum of sales minus stock, yet they decide what you keep.

What is a good profit margin?#

A good profit margin depends on your industry. A figure that is excellent in one sector is a warning sign in another.

• General benchmarks put a 10% net margin as healthy, according to Xero's guide (2026).
• A 20% net margin is considered a strong indicator of business performance (Xero, 2026).
• Retail businesses that rely on high sales volume typically run net margins between 2% and 5%, according to Bill.com (2025).
• The system and application software industry averaged a net margin of 22.9% in 2024, according to NYU Stern data (2025).

Is a 20% net margin high? By the general benchmark, yes. For a supermarket it would be extraordinary. For a software company it is ordinary. Compare yourself with businesses that sell the way you sell.

Is a 30% markup the same as a 30% margin?#

No. Markup is profit as a percentage of cost. Margin is profit as a percentage of price. A product costing £70 and sold at £100 has a markup of £30 ÷ £70, which is 42.9%. Its margin is £30 ÷ £100, which is 30%.

Confusing the two leads to underpricing. If you want a 30% margin, divide cost by 0.7, not multiply by 1.3. A £70 cost then gives a price of £100.

Prices and plan limits verified as of November 2026.

FAQs#

Is 30% markup the same as 30% margin?#

No. Markup divides profit by cost, while margin divides profit by price. A 30% markup gives a margin of about 23%. To reach a 30% margin, you need a markup of roughly 43%. Always check which one a figure refers to before you set a price or compare results.

Is 20% profit margin high?#

It depends on the sector. Xero describes a 20% net margin as strong (2026), and software averaged 22.9% in 2024. For retail, where net margins typically sit between 2% and 5%, it would be exceptional. Judge it against your own industry.

How does a profit margin work?#

A profit margin divides profit by revenue and shows the result as a percentage. A 15% margin means you keep £15 of every £100 you sell. Because it is a ratio, you can compare it across periods, products and businesses of different sizes without the raw figures getting in the way.

What does the gross margin ratio represent?#

The gross margin ratio shows the share of revenue left after the direct costs of making or delivering what you sell. It measures how efficiently you produce. What remains must cover overheads, interest and tax, so a high gross margin does not guarantee a profit.

How often should I review my profit margins?#

Review them on a regular schedule, at least monthly, and more often if your costs move quickly. Margins slip when supplier prices rise, discounts spread or overheads creep. The sooner you see the drop, the sooner you can adjust prices or costs. Review again whenever you change pricing or launch a product.

Conclusion#

Margin of profit is profit as a percentage of revenue. Gross, operating and net margins each count more costs, and the gap between them shows where your money goes. A good figure depends on your industry. It is not a fixed target.

Start by calculating all three margins from your latest year of figures. Then compare your net margin with businesses that sell the way you do.