Lifetime Value per Active Customer (LTV/AC) is a calculation that shows how much money you can expect to make from a single customer over the course of their lifetime.
LTV/AC is calculated by taking the total revenue that a customer will generate for your company over the course of their lifetime, and dividing it by the number of months that they have been a customer.
For example, if a customer has been with your company for two years and has generated $10,000 in revenue, their LTV/AC is $5,000.
LTV/AC is a very important metric because it gives you a good idea of how much a customer is worth to your company. It also gives you a good idea of how much you can expect to spend on acquiring new customers, and how much you can expect to make from your existing customers.