This tool helps e-commerce businesses determine the maximum amount they can spend to acquire a customer without losing money.
Gross Profit per Order:
0
Contribution Margin (Breakeven CPA):
Maximum CPC for Breakeven:
Breakeven ROAS:
Breakeven CPA is the point where your marketing cost per acquisition exactly equals the profit earned from a sale before accounting for ad spend.
Formula: Breakeven CPA = (AOV × Gross Margin %) - Variable Costs
Breakeven CPA = (AOV × Gross Margin %) - Variable Costs
Consider a store with a $100 AOV, 60% margin, and $5 shipping cost.
A good CPA is typically 20-30% below your breakeven point to ensure a healthy net profit margin after all expenses.
Variable costs include any expense that occurs only when a sale is made. If you pay for shipping, it directly reduces your available budget for ads.
While it doesn't change your 'Breakeven CPA' dollar amount, a higher conversion rate allows you to bid more for clicks (CPC) while maintaining that same CPA.
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