Knowledge base · metrics

LTV and repeat sales: money you have already paid for

in short

In working form, LTV is average deal size multiplied by the number of purchases over a customer's life. Harder formulas earn their keep only once you are already working your base. The number that matters most to an owner is simpler: what share of the month's revenue came from people who had bought before. If that share sits near zero, you do not have a business with a base, you have a conveyor of one-off deals, and every dollar of revenue costs the full price of acquisition.

How to calculate it in one evening

  1. Take every payment from the last twelve months.
  2. Mark each customer: first purchase or repeat.
  3. Calculate the share of revenue repeat purchases produced.
  4. Calculate the average number of purchases per customer.
  5. Multiply by average deal size. That is your working LTV.

Why the base stays silent

  • nobody has been given the job of working it
  • no segments, so it is unclear who to offer what to
  • no reason to reach out beyond «how are things»
  • comp pays for new customers, not for returning ones
On one project a school had a base of more than two thousand students that nobody worked. We put our first reps straight onto it and in two weeks brought in almost $10,000. That is money already paid for in marketing, and the selling cost 6% in commission.

What produces the most

  1. A second product for people who finished the first. The warmest segment there is, and usually ignored.
  2. Extended access or servicing. A cheap deal with a high acceptance rate.
  3. Bringing back the people who did not buy. People who showed interest and vanished often simply never got a reason.

One number for the weekly report

The share of the week's revenue from repeat purchases. One figure that tells you whether the team works the base or only the new enquiries.

Questions people ask

What is a normal share of repeat sales?

It depends on the product. For training and services a healthy share starts at a third of revenue, for one-off large purchases it will be lower.

Do I need a complex LTV with discounting?

Not at the start. Average deal size times number of purchases gives you enough to decide on.

Sources: the system of metric maps and metric trees («Neuro MBA» course, Nekrasov and Kolokolov, 2026), market benchmarks 2025-2026, and Double Sales' own measurements on projects.
if you need this done in your company

We break the base into segments, calculate the repeat-purchase window and build the call list. Part of ongoing support, from $1000 a month.

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