Customer acquisition cost

Customer lifetime value is the total gross margin a business expects to earn from a customer across the full relationship. It is not the revenue that customer generates. A workable formula is average purchase value multiplied by purchase frequency, multiplied by average customer lifespan, multiplied by gross margin. Historic CLV sums the margin a customer or cohort has already delivered. Predictive CLV forecasts future margin and discounts it to present value. The most common error is substituting revenue for margin. That substitution inflates CLV and leads teams to justify acquisition spending that a true margin-based figure would not support.

Churn rate is the percentage of customers who stop doing business with a company during a set period. It’s calculated as customers lost during the period divided by customers at the start of the period. Logo churn counts customer accounts. Revenue churn measures dollars lost. The two figures can diverge if the customers who left were smaller than average. Churn also splits by cause: voluntary churn, where customers choose to leave, and involuntary churn, caused by failed payments or expired cards. A monthly subscription and an annual contract produce structurally different churn math, so comparisons only hold within the same industry and billing cycle.

Customer segmentation is the practice of dividing a customer base into groups distinct enough in behavior or need to warrant different treatment. That different treatment might mean different messaging, pricing, service levels, or product priorities. Standard bases include demographic and firmographic factors (company size, industry, revenue for B2B), behavioral patterns (usage, purchase frequency), needs-based groupings, and value-based segmentation. A segment is only useful if it is measurable, reachable through existing channels, and large enough to justify a distinct strategy. This matters for brand health tracking: a single averaged score can mask sharp declines within one segment while others improve. GrubHub works against that risk by turning feedback into insights that shape its roadmap, with updates shared to 100+ staff weekly rather than read in fragments.