Revenue is vanity. Margin is sanity. You can generate millions in sales and still go broke if your margins are thin enough. Understanding the three core margins — gross, operating, and net — is the fastest way to read the health of any business, including your own.
Gross margin
Gross margin is revenue minus the direct cost of delivering your product or service, divided by revenue. It answers a simple question: for every dollar you sell, how much is left after the cost of goods? Software businesses often run 70–90% gross margins; a restaurant might sit at 60–70% on food; a reseller could be as thin as 20%.
Gross margin sets your ceiling. Everything else — salaries, rent, marketing, profit — has to fit inside what gross margin leaves behind.
Operating margin
Operating margin takes gross profit and subtracts operating expenses: salaries, rent, software, marketing, and the rest of running the business. It shows whether your core operations actually make money before taxes and financing. A healthy small business often targets a 10–20% operating margin.
Net margin
Net margin is what is left after everything — operating costs, interest, taxes. It is the true bottom line, the percentage of every revenue dollar that becomes profit you can keep or reinvest. Net margins vary widely by industry, but for many small businesses, 5–15% is a realistic, sustainable target.
Why all three matter
- A strong gross margin but weak net margin points to bloated overhead.
- A thin gross margin caps how profitable you can ever become, no matter how lean you run.
- Watching all three over time reveals whether you are scaling profitably or just growing.
When you build a projection in ProfitLabs, all three margins are calculated automatically and compared against industry benchmarks — so you can see at a glance whether your model is realistic or running on optimism.