Profit margin — owner's guide
What Is a Good Profit Margin? Calculate It and Improve It
A good profit margin is not a universal number but one that pays you properly, funds the next stage of growth and survives a bad quarter, and whether yours does depends on the business model more than on any benchmark.
Owners ask what a good profit margin is because they want to know if they are doing well. The honest answer is that a grocery store and a software company can both be healthy with margins that are wildly different. What matters is knowing your three margins, understanding what drives each one, and knowing which levers actually move them.
This guide works through the calculation on a simple example, explains how margin varies by business model, clears up the markup confusion that trips up many product businesses, and ranks the levers for improving margin in the order they usually pay off.
Gross vs net profit margin, plus the one in between
Gross margin is revenue minus the direct cost of what you sold, divided by revenue. It tells you whether each sale is fundamentally worth making. Operating margin subtracts your running costs too: rent, salaries not tied to delivery, software, marketing. It tells you whether the business works as an operation. Net margin subtracts interest and tax as well, and tells you what is actually left.
Decide what goes into direct costs and stay consistent. Many service businesses include the labour of the people doing the work; many product businesses include materials, packaging and inbound shipping. Changing definitions from month to month makes the trend meaningless.
How to calculate profit margin: a worked example
Take an illustrative bakery-café with $400,000 in annual revenue. Ingredients, packaging and direct costs come to $140,000, leaving $260,000 of gross profit: a gross margin of 65%. Rent, staff, utilities, marketing and software add up to $220,000, leaving $40,000 of operating profit, an operating margin of 10%. After $6,000 of interest and $8,000 of tax, net profit is $26,000, a net margin of 6.5%.
Two things jump out. The gross margin looks healthy, but most of it is consumed by fixed costs, so the business is sensitive to volume. And check whether the owner's pay is inside that $220,000. If the owner works full time and takes nothing, the true margin is lower than it looks, and a buyer or lender will adjust for it.
So what is a good profit margin? It depends on the model
Margins follow the economics of the business. In NYU Stern professor Aswath Damodaran's dataset of US listed companies, updated January 2026, grocery retail showed a net margin of around 1.3% while system and application software was around 25%. Those are large public companies, not small businesses, but the gap shows why comparing yourself to the wrong industry is useless.
Low-margin models survive on volume and fast stock turnover. High-gross-margin models such as software, consulting or premium brands usually spend heavily on sales, product or people, so their net margins aren't automatically huge. The better question is whether your margin covers a fair owner salary, reinvestment and a cash buffer. Compare yourself with businesses of a similar model and size: your accountant, trade association or industry reports are better guides than a generic figure.
Margin vs markup, and other common mistakes
Markup is profit as a share of cost. Margin is profit as a share of price. Buy something for $10 and sell it for $15, and the markup is 50% but the margin is 33%. Owners who set prices with a 50% markup while planning for a 50% margin end up with far less profit than they budgeted.
Other mistakes: looking only at the blended margin, which hides products or customers that lose money; ignoring discounts, refunds and payment fees, which quietly eat into gross margin; and treating a busy month as proof the business is profitable. Calculate margin by product line or customer type at least once a quarter.
How to increase profit margin: price, mix, then costs
Price is usually the strongest lever because a price increase that doesn't lose customers flows straight to profit. In the café example, a 4% price rise adds $16,000 of revenue; with costs unchanged, operating profit rises from $40,000 to $56,000. Cutting costs by the same amount is usually far harder.
Mix comes next: steer customers toward higher-margin products, bundle, and stop promoting items that sell well but earn little. Then costs: renegotiate with suppliers, reduce waste, schedule staff against real demand, and drop customers who cost more to serve than they pay.
Several WOW Mentor teardowns show owners raising margin by changing what they sell rather than cutting, from a moving company designing a premium tier to the gap between luxury brands and airlines; the related briefings below are English audio with a full transcript.
Checklist for today
- 1.Define what counts as direct cost for your business and write it down.
- 2.Calculate gross, operating and net margin for the last 12 months.
- 3.Check whether the owner's salary is included, and recalculate with a market-rate salary if not.
- 4.Break gross margin out by product line or customer type and flag anything below your average.
- 5.Model a small price increase and decide where to test it first.
Related briefings
English audio with a full transcript.
Frequently asked questions
What is the formula for profit margin?
Profit margin equals profit divided by revenue, multiplied by 100. Use gross profit for gross margin, operating profit for operating margin, and net profit after interest and tax for net margin.
Is a 20% profit margin good?
For net margin, 20% is strong for most small businesses, but it depends on the model. A service firm with low overheads might sustain it, while a retailer rarely will. Check whether that 20% already pays the owner a fair salary, because that changes the picture.
Why is my gross margin high but my net profit low?
Usually because fixed costs such as rent, salaries and software absorb most of the gross profit. Either volume is too low for your cost base, or overheads have grown faster than sales. Look at operating costs as a share of revenue over time.
What is the difference between margin and markup?
Markup measures profit against cost; margin measures profit against selling price. A 50% markup equals about a 33% margin. Confusing them is one of the most common reasons product businesses make less than they planned.