🗺️ Planning

Financial modeling for non-finance founders

Lesson 3 of 8 · 8 min read

A financial model is a story told in numbers. Three sheets:

  1. Assumptions. Customers, ARPU, churn, CAC, payroll, tools.
  2. P&L. Revenue → COGS → Gross Margin → OpEx → EBITDA.
  3. Cash flow. When does cash arrive? When does it leave? When do you run out?

Don't get fancy. A clear, tweakable Google Sheet beats a beautiful model nobody updates. Refresh monthly.

The one-page business planUnit economics