Latest articles
SaaS Metrics 101: MRR, ARR, Churn, and Net Revenue Retention
Every SaaS founder eventually faces an investor question they can't answer. This guide is the cheat sheet for every metric — formula, benchmark, and…
How to Calculate Conversion Rate (And the Benchmarks That Actually Matter)
Conversion rate is simple math but a deceptive metric. Here's how to compute it correctly, what 'good' looks like in 2026, and where to…
Break-Even Analysis: A Step-by-Step Guide for Founders
Knowing your break-even point tells you the minimum you need to sell to keep the lights on. Here's how to calculate it and the…
Profit Margin vs Markup: The Difference That Costs Retailers Millions
Confusing margin with markup is the most common pricing mistake in retail. The same number means very different things — and it shows up…
Standard Deviation vs Variance: When to Use Which
Variance and standard deviation measure the same thing — but only one is in the units you actually want. Here's how to know which…
Z-Scores and P-Values: A Practical Guide for Analysts
Z-scores tell you how unusual a data point is. P-values tell you how unusual a result is. Here's how both work in plain English.
Confidence Intervals & Sample Size: How Much Data Do You Actually Need?
Surveying 100 people gives you a ±10% margin of error. 1,000 gets you to ±3%. Here's the math behind sample size — and why…
Correlation vs Regression: When to Use Which (With Real Examples)
Correlation tells you if two variables move together. Regression tells you how much one moves when the other does. Here's how to choose.
Bayesian vs Frequentist A/B Testing: Which Should You Use in 2026?
Frequentist tests give you p-values. Bayesian tests give you 'probability B beats A.' Here's why most modern CRO teams are switching.
NPV vs IRR: How to Evaluate Any Investment Like a CFO
NPV tells you how much value an investment creates in dollars. IRR tells you the percentage return. Here's how to use both — and…