Base margin
Profit Margin Calculator
Start with product cost, selling price, gross profit, and contribution margin.
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Work through the math in order: margin, break-even volume, discount drag, CAC payback, and LTV:CAC. Then connect those numbers to the growth playbook.
Start with product cost, selling price, gross profit, and contribution margin.
Translate fixed costs and per-unit margin into the sales volume required to stay alive.
See the extra unit volume required to preserve gross profit after a markdown.
Check how many months it takes to recover acquisition spend from new customers.
Compare customer lifetime value against acquisition cost before accepting higher CAC.