Customer Churn Rate (also called attrition rate) measures the rate at which a business loses customers. It is a critical health indicator for subscription businesses and any company where recurring revenue depends on retention.
Formula:
Churn Rate (%) = (Customers lost during period ÷ Customers at start of period) × 100
Why it matters for support teams: Support quality is a significant driver of churn. Research consistently shows that customers who experience unresolved issues or high-effort interactions are far more likely to cancel or defect. Support teams can influence churn by:
- Improving FCR and reducing resolution time
- Proactively reaching out on recurring issues
- Flagging at-risk accounts to customer success teams
Churn rate is typically reported monthly or annually. Even small reductions (e.g., 1–2 percentage points) compound significantly over time into large revenue impacts.