This is not complicated math.
Most founders just were never taught it — or were taught pieces of it in isolation and never learned how to connect the dots. Before I was a fractional COO and integrator, I spent years as a fractional CFO. I’ve sat across from a lot of founders who were working incredibly hard and had no real idea whether their business was actually profitable. And even if they could see the profitability, they couldn’t pinpoint the exact reason their margins were so low.
What that background gave me — that most COOs and integrators don’t have — is the ability to walk into a business and see the team and operations problems reflected in the financial numbers. The P&L tells the story. Most people just don’t know how to read it
Here are the three numbers that change how you see everything.
Number 1: Gross Margin
Gross margin is what’s left after you subtract the direct cost of delivering your service or product. That includes your time, contractor costs, direct materials, shipping costs, and any tools that only exist because of a specific client engagement.
Formula: (Revenue − Cost of Service Delivery) ÷ Revenue × 100
Example: You bring in $10,000 this month. It costs $3,000 to deliver. Your gross margin is 70%.
Healthy ranges:
- Service business: 60–80%
- Product-based business: 40–60% (lower because of materials and shipping — that’s not a problem, it’s the nature of the model)
If you’re below those ranges, you either have a pricing problem or you’re delivering more than you’re charging for. Both are fixable. But you can’t fix what you haven’t measured.
Number 2: Net Margin
Net margin is the real number. It’s what’s left after everything — overhead, software, ads, your own pay, all of it.
Formula: (Net Profit ÷ Revenue) × 100
Here’s the thing most founders miss: 90% of founder-led businesses don’t put the founder’s pay back into the P&L. Which means they’re never tracking their true numbers. You’re only paying yourself what you can, not what you should — and if you’re a Schedule C pass-through entity, it isn’t hitting the P&L at all.
You can have a 70% gross margin and a 12% net margin. That’s not a pricing problem. That’s a cost structure problem. Your overhead is eating your profit.
Healthy range for a service business: 20–35%
Below that, you’re working hard for thin returns. The business looks healthy from the outside and feels exhausting from the inside.
This is why I stand firm that revenue is not the measure of your success. I once worked with a brand doing nearly $10M in revenue — over $2M in capital raised, four years of operations — that simply would not cut costs. They were chasing growth for the sake of growth. It didn’t end well. Revenue is a vanity metric. Margin is the truth.
Number 3: Contribution Margin
This is where the real decisions live — and almost no one talks about it.
Contribution margin tells you how profitable each individual offer or product is, before overhead. It’s the number that tells you which offer to sell more of and which one to quietly retire.
Formula: (Revenue from Offer − Variable Costs of That Offer) ÷ Revenue from Offer × 100
Service example: You run a $5,000/month retainer that takes 15 hours of delivery. You also run a $2,000 workshop that takes 3 hours. The retainer looks bigger and better on the surface. But the contribution margin per hour on the workshop is nearly double. You’ve been optimizing for the wrong offer.
Product example: You sell a $97 digital product with $0 in variable costs. You also sell a $500 physical kit with $180 in materials and shipping. The digital product’s contribution margin is 100%. The kit’s is 64%. Scale the one that bleeds less.
One more thing: if you’re running paid ads to a specific offer, include that ad spend in your variable costs. A $2,000 workshop with $400 in ads to fill it has a contribution margin of 80%, not 100%. Know your actual numbers.
Why These Three Numbers Are Connected to Everything Else
These numbers don’t exist in a vacuum. They’re a direct reflection of your people, your systems, and your processes.
Low gross margin? You might have a delivery problem — too many people touching the work, no documented process, every engagement rebuilt from scratch.
Low net margin? You might have a team structure or tools problem — paying for headcount or software that isn’t driving revenue, or carrying overhead that made sense at $150K but doesn’t at $300K.
Low contribution margin on your best-looking offer? You might have a systems problem — no repeatable delivery model, which means every engagement costs more than it should.
The numbers tell you where the leak is. The operations work is how you fix it.
How to Run This Yourself in 15 Minutes
Pull up your last three months of P&L. Copy the numbers into your AI tool of choice. Ask it to:
- Calculate your gross margin, net margin, and contribution margin per offer
- Compare them to service business benchmarks
- Flag where the biggest gap is and what’s likely causing it
It takes about fifteen minutes — if your financials are in good shape. In accounting we say garbage in equals garbage out. So if your books are a mess, start there first.
Most founders have never seen all three numbers side by side. It changes how you look at your business. And when you start comparing them over time, that’s where the real story lives. Numbers tell you where there’s an itch you actually need to scratch.
The Bottom Line
You don’t need an MBA to run a healthy business. You need three numbers, tracked consistently, read honestly.
Gross margin tells you if your delivery is efficient. Net margin tells you if your cost structure makes sense. Contribution margin tells you which offers to bet on.
Get those right and everything else gets easier to see.