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Term · Business Model & Operating KPIs

Churn rate

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In briefThe churn rate measures how many customers or how much revenue is lost over a period. For small subscription businesses a high churn rate can devalue growth despite strong new-customer acquisition.

Definition

The cancellation rate of customers or revenue within a period. It shows how much business is lost before new customers are won.

How it is calculated

Formula. Logo churn = lost customers ÷ customers at the start of the period; revenue churn = lost revenue ÷ starting revenue.

Why it matters for small caps

For small subscription businesses, a high churn rate can devalue growth despite strong new-customer acquisition.

Common misreadings

  • Churn is often measured only as a customer count; revenue churn can be considerably more relevant.

In the process

→ Used in Step 4 – Business model

Frequently asked

What is the churn rate?
It is the attrition rate of customers or revenue within a period. It shows how much of the base is lost.
How is the churn rate calculated?
Logo churn results from lost customers divided by the customer base at the start of the period; revenue churn from lost revenue divided by starting revenue. Both perspectives complement each other.
Why is the customer count alone too little?
Churn is often measured only via customers, yet revenue churn can be considerably more important. The loss of a few large customers weighs more heavily than many small ones.

Related terms

NRRARRUnit economics

Sources

Primary
Methodology
Category: Business Model & Operating KPIs · SaaS and subscriptionRelevance: AdvancedJurisdiction: International

Education only, not investment advice. Ranges and thresholds are didactic orientation values, not an official standard.