General

A moving average smooths a jagged daily number into a readable trend. Here is how to pick the window, why it lags, and the traps that fool a solo founder.

Vanity metrics only ever go up and change no decision. Here is how to spot them, turn totals into honest rates, and keep the numbers that actually matter.

At forty customers a monthly churn rate can only take four values, and the distance between healthy and alarming is one person. Four standard metrics that go from imprecise to actively misleading once the denominator gets small.

The mean adds everything up; the median takes the middle. Here is why a few big customers make the average lie, and which one to trust when.

A practical look at where AI genuinely speeds up analytics for solo founders in 2026, where it quietly gets things wrong, and how to use it without handing over your judgment.

My average customer spent $62 a month and not one of them actually did. The chart had a hole exactly where the average sat, and I spent two months building a product to fill it.

A plain-English guide to building a business dashboard a solo operator will actually check every week, instead of one more tab full of charts nobody reads.

A plain-English breakdown of net revenue retention: what it measures, how to calculate it from your own customer base, why crossing 100% matters, and where the number can quietly mislead you.

I told a partner I had 412 customers. Reading the list by hand put the real figure near 340, and the 72 rows in between had been quietly deflating every per customer number I owned.

What activation rate measures, why the aha moment matters more than early retention, and how to define, calculate, and improve your own activation event.