Unit economics
Unit economics are the revenues and costs of a business measured per single unit, usually one customer, to show whether the model works before scale.
The purpose is to test the model at its smallest repeatable size. If one customer loses money, more customers lose more money, and growth makes the problem larger rather than smaller.
For subscription businesses the core pair is lifetime value against acquisition cost, read alongside payback period.
Keep this number live
Plainhub computes unit economics from money you record in plain words, so it is current when you need it rather than the night before a board meeting.
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