Who This Helps
You're a product manager who gets asked "Is this feature worth it?" or "Why is revenue up but cash flat?" every week. You want to turn those fuzzy questions into clear yes-or-no decisions — without needing a finance degree.
This article is for you. It's built around the Founder Finance Basics Mission Pack, which gives you practical tools like the Unit Economics Snapshot and Runway Forecast. No jargon, just real moves.
Mini Case
Meet Ben. He runs a SaaS product. Revenue grew 12% last quarter, but cash stayed flat. His team wants to hire two more engineers. Ben's gut says "maybe," but he needs a number.
Using the Founder Finance Basics Mission Pack, Ben built a one-page unit economics truth. He found his CAC payback period was 18 months — way above the 12-month safe zone. That single insight turned the hiring question into a clear decision: fix payback first, hire later.
Numbers don't lie. They just need a good translator.
Do This Now (5 Steps)
- Grab your revenue and cost numbers for the last 3 months. You need total revenue, cost of goods sold, and sales/marketing spend.
- Calculate your unit economics. Divide total customers acquired by total sales spend to get CAC. Divide gross profit per customer by CAC to get payback period.
- Compare to safe benchmarks. For most SaaS, payback under 12 months is healthy. Over 18 months means you're burning cash on growth.
- Run a runway forecast. Take your current cash balance and monthly burn rate. Divide cash by burn to get months of runway. If it's under 12 months, you have a decision to make.
- Write a one-paragraph decision memo. State the problem, the number, and the recommended action. Share it with your team. That's it.
Avoid These Traps
- Mixing gross and net revenue. Always use gross profit (revenue minus direct costs) for unit economics. Net revenue includes stuff that doesn't scale.
- Ignoring time. A 12-month payback is fine if you have 24 months of runway. But if runway is 6 months, you need to act fast.
- Using averages alone. Segment by channel. One channel might have 6-month payback, another 24 months. Kill the bad one.
- Forgetting to update. Unit economics change every quarter. Re-run your numbers when you launch a new feature or change pricing.
Your Win by Friday
By Friday, you'll have a one-page unit economics snapshot that answers three questions: Is my growth profitable? How long until I get my money back? How much runway do I have?
That's it. No more guessing. No more "let me check with finance." You'll walk into your next stakeholder meeting with a single number that makes the decision obvious.
And honestly? That feels pretty good.