Free Tool
Cost of Sale (COS) Calculator
Find the Cost of Sale target that keeps your business profitable, based on your own numbers.
Enter your margins below and this tool works out the COS you can afford to pay for advertising — both on the first sale and, if repeat purchases matter to you, over a customer's lifetime.
Business Metrics
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Optimize for Initial or Lifetime profit?
New COS Targets
Target Marginal COS
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Target Paid COS
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Want to talk through what these numbers mean for your business? Get a free review from one of our analysts.