Which of the following is NOT required to calculate the lifetime value of a customer?

Calculating the lifetime value (LTV) of a customer primarily focuses on specific metrics that directly relate to the customer's purchasing behavior and value over time. The average purchase value, average purchase frequency, and customer acquisition cost are essential components in determining the LTV because they provide a clear understanding of how much revenue a customer generates and what it costs to acquire them.

The average purchase value allows you to determine how much a customer typically spends in a single transaction. The average purchase frequency gives insight into how often a customer makes a purchase, while the customer acquisition cost tells you how much you need to invest to gain a new customer.

In contrast, current market trends, while they can influence customer behavior and broader business strategies, are not a direct factor in calculating LTV. Market trends may provide context for understanding changes in customer behavior or shifts in purchasing patterns, but they do not provide specific numeric values needed to perform the actual calculation of LTV. Thus, current market trends are not a requirement for calculating the lifetime value of a customer.