Metrics & Performance
Last updated
Quick Answer
The percentage of customers or revenue lost over a given period, a critical indicator of product-market fit.
Customer Churn Rate
Churn Rate = Customers Lost in Period / Customers at Start of Period
Where
Churn rate measures the rate at which customers cancel their subscriptions or stop using a product. It's expressed as a percentage of customers (logo churn) or revenue (revenue churn) lost over a period. Net churn accounts for expansion revenue from existing customers. Negative net revenue churn (where expansion exceeds losses) is the gold standard and indicates strong product-market fit.
In Practice
A SaaS company with 200 customers at the start of the quarter loses 10 customers (5% logo churn) but the departing customers were smaller accounts, so revenue churn is only 3%. Expansion from remaining customers creates -2% net revenue churn.
Why It Matters
Churn is the silent killer of SaaS companies. High churn makes growth a treadmill — you have to replace lost revenue before you can grow. Understanding churn dynamics is essential for sustainable scaling.
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Churn rate measures the rate at which customers cancel their subscriptions or stop using a product. It's expressed as a percentage of customers (logo churn) or revenue (revenue churn) lost over a period. Net churn accounts for expansion revenue from existing customers.
Understanding Churn Rate is critical for founders navigating the fundraising process. It directly impacts deal terms, valuation, and the relationship between founders and investors.
Churn Rate falls under the metrics category in venture capital. This area covers concepts related to the quantitative measures used to evaluate fund and company performance.
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