From MRR to scale
Chapter 6 — the metrics that matter, and the difference between growth and motion.
Once money is flowing, the question changes from "does it work?" to "does it compound?" — and the metrics change with it.
The four numbers worth watching
- MRR and its trend — not the number, the slope. A feed-connected portfolio shows the 60-day trend; a flat line at $800 is a different business than a bumpy climb to it.
- Churn — the percentage of customers (or MRR) leaving per month. Below ~5%/month, growth is pourable; above it, you're filling a leaking bucket.
- ARPU and concentration — average revenue per customer, and how much of the portfolio rides on one product. Both are on the Reports page because both change what "scale" should mean for you.
- Founder-adjusted net — MRR minus infrastructure minus your hours at a real rate. Scaling a product that nets negative at your rate is buying a job you didn't apply for.
Growth is not motion
More features, more posts, more products-in-flight — motion. Growth is the MRR slope and retention. The test: name the metric you're trying to move this month. If you can't, you're doing motion. Pick the metric, design an experiment around it, and give it an end date.
When scale is actually a decision
MRR → SCALE is a gate precisely because scaling is where founders overspend trust: it needs an explicit decision, reviewed economics, and risks re-read — not just a good month. The gate makes you ask: scale this, or start the next thing and hold this one at maintain? Both can be right; only one can be chosen.
Next: The portfolio game — where this decision actually lives.