How to Calculate Profit Margin: Formula, Examples & Step-by-Step Guide
Profit margin shows how much of your sales revenue remains as profit after costs are taken into account. Whether you run a small business, sell products online or provide services, understanding your profit margin can help you price more confidently and make better financial decisions.
In this guide, you’ll learn how to calculate profit margin, understand the formula, see practical examples and discover what your margin can tell you about your business.
What Is Profit Margin?
Profit margin is the percentage of your sales revenue that remains after costs are deducted. It helps you understand how much profit your business is making from the money it earns.
For example, if your business makes £10,000 in sales and earns £2,000 in profit, your profit margin is 20%. This means that for every £1 of revenue, 20p remains as profit.
How to Calculate Profit Margin.
The basic profit margin formula is:
Profit Margin (%) = (Profit ÷ Revenue) × 100
Profit is the amount left after costs are deducted, while revenue is the total amount earned from sales.
Example:
Suppose your business generates £10,000 in revenue and has £8,000 in total costs.
Profit = £10,000 − £8,000 = £2,000
Profit Margin = (£2,000 ÷ £10,000) × 100 = 20%
This means your business keeps 20p as profit for every £1 of revenue generated.
Types of Profit Margin
There are three common types of profit margin:
Gross Profit Margin – Shows how much revenue remains after subtracting the direct cost of producing goods or delivering services.
Operating Profit Margin – Shows how much profit remains after operating expenses such as wages, rent and administrative costs are taken into account.
Net Profit Margin – Shows the percentage of revenue left as profit after all expenses, interest and taxes have been deducted.
What Is a Good Profit Margin?
A good profit margin varies depending on the industry, type of business and operating costs. A margin that is considered healthy in one industry may be relatively low or high in another.
Rather than focusing on one universal percentage, businesses can compare their profit margin with previous periods, similar businesses in their industry and their own financial targets. Improving your margin over time can be a useful sign that pricing and costs are being managed effectively.
How to Improve Your Profit Margin
Improving profit margin usually involves increasing revenue, reducing unnecessary costs, or a combination of both. Some practical ways to improve your margin include reviewing your prices, negotiating better supplier costs, reducing waste and unnecessary expenses, and focusing on products or services that generate stronger profits.
Regularly calculating your profit margin can also help you spot changes early and understand whether your business is becoming more or less profitable over time.
Some common mistakes can make profit margin calculations misleading. These include forgetting to include certain costs, confusing revenue with profit, using figures from different time periods, or calculating margin using the wrong formula.
It is also important not to confuse profit margin with markup. Profit margin measures profit as a percentage of the selling price, while markup measures how much is added to the cost of a product or service to arrive at the selling price.