Who This Helps
You're a growth marketer who wants to move channel metrics without guesswork. You have data, but you're not sure which lever to pull first. This is for you.
Mini Case
Meet Ben. He runs growth for a SaaS startup. Revenue is up 12% month over month, but cash is flat. He's spending on three channels, but he doesn't know which one is actually paying back. He pulls a one-page unit economics truth from the Founder Finance Basics Mission Pack and sees that Channel A has a 7-day payback, Channel B takes 45 days, and Channel C is losing money. He stops guessing and prioritizes his next experiment on Channel A.
Do This Now (5 Steps)
- Grab your channel spend and revenue data for the last 30 days.
- Calculate CAC per channel. Divide total spend by new customers from that channel.
- Find your payback period per channel. Divide CAC by monthly gross profit per customer.
- Rank channels by payback speed. Shortest payback wins.
- Pick the channel with the fastest payback for your next experiment. Focus your effort there.
Avoid These Traps
- Don't optimize for revenue alone. A channel with high revenue but slow payback can kill your runway.
- Don't run three experiments at once. You'll waste time and never know what moved the needle.
- Don't ignore your unit economics snapshot. It's your truth-teller.
- Don't assume past performance predicts future. Re-check your numbers every month.
- Don't forget to include all costs in CAC (ads, tools, salaries). Hidden costs mess up your math.
- Don't panic if a channel has a long payback. Just deprioritize it for now.
- Don't skip the CAC Payback Triage mission from the course. It gives you a decision card.
- Don't make this harder than it is. Three numbers: spend, customers, profit.
Your Win by Friday
By Friday, you'll have a clear #1 experiment to run. No more spreadsheet paralysis. You'll know exactly which channel move has the highest impact. And you'll feel like a calm founder, not a frantic marketer. That's a good Friday.