CM3 is your conversion KPI
Running CRO tests? Forget CVR or CTR or CPA, here's your only metric of choice.
Contribution margin 3 (CM3) is the key metric you should be considering when running CRO experiments.
CM3 is the profit leftover from a sale once you’ve taken into account COGS (inc. fulfilment), card fees, discounts, and marketing costs. It’s the only true measure of how your conversion rate experiments have taken place.
Today we’ll be exploring why it…
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