Profit Margins: Gross, Operating & Net
Raw dollars don’t travel. Margins turn them into percentages you can compare against your industry and your past self.
5 min readIntermediateUpdated July 2026
Key takeaways
Gross margin is the ceiling on profitability: everything else is paid out of what is left below it.
Operating margin isolates whether the core business works, before financing and tax.
Net margin is what you truly keep. Watch its trend, not just its level.
Why percentages beat dollars
$50,000 of profit is spectacular for a food truck and alarming for an airline. Margins turn dollars into percentages so you can compare against your industry, your competitors, and your own past self.
The three margins
- Gross margin = gross profit ÷ revenue. How many cents of each sales dollar survive the direct cost of delivering it. This is the ceiling on profitability: everything else gets paid out of what’s left.
- Operating margin = operating income ÷ revenue. What the core business keeps per dollar, before financing and tax. The cleanest “is this business fundamentally working?” signal.
- Net margin = net income ÷ revenue. What you truly keep after every last cost. Watch the trend: is growth making the business healthier, or just bigger?
Good depends on the industry
What counts as a “good” margin varies wildly. Software gross margins run 70–90%; grocery stores live happily below 30%. Comparing against your sector matters more than any universal rule of thumb.
Built-in benchmarks
Koala compares your margins against the typical range for your industry automatically, so you can see at a glance whether you’re running lean or bloated.
See it in a real model
The fastest way to make this stick is to build one and watch the numbers move.
Open the builderRelated reading
The Three Statements
The Income Statement: Are You Making Money?
Read it top to bottom like a staircase. Each step down, gross profit then operating income then net income, is its own health check.
Read
Reading Like a Pro
Five Classic Mistakes (and How to Dodge Them)
Reading statements is a skill, and beginners trip over the same five stones. Learn them here instead of the hard way.
Read
Metrics & Ratios
Liquidity & Runway: Can You Survive?
Profit is about the year. Liquidity is about next month. These are the numbers that decide whether you make it that far.
Read