Which metric captures the long-term value of a customer?

• A. Cost of goods sold
• B. Average order value
• C. Gross margin
• D. Customer lifetime value

Answer: (D)

The main idea is that the metric the captures what a customer will be worth over the entire relationship is customer lifetime value. It estimates the total net profit a business expects to earn from a customer from first contact through the end of the relationship, accounting for how often they buy, how much they spend, how long they stay, and the margins earned on those purchases. This is different from other metrics that look at single transactions or costs. Cost of goods sold, for example, is about the direct cost to produce or acquire what you sell, not how a customer behaves over time. Gross margin tells you profitability on individual sales after COGS but doesn’t reflect future purchases. Average order value measures how much is paid per order but not how often or how long the customer remains.

A practical way to view CLV is: average order value multiplied by purchase frequency gives you expected revenue per period, multiplied by the expected lifespan of the customer gives total revenue over the relationship, and then applying the margin rate gives gross profit from that customer; subtracting acquisition costs yields the net value. For example, if the average order value is $50, customers buy 4 times a year, and they stay for 3 years with a gross margin of 60%, the gross profit from that customer over their lifetime would be 50 × 4 × 3 × 0.60 = 360. If acquisition costs were $40, the net lifetime value would be $320. This single metric helps decide how much to invest in acquiring and retaining customers, since it reflects the long-term worth of a customer rather than a single transaction.