
Break-even ROAS & Ad Budget Planner
Profit after ads · last 4 weeks — revenue × each product's contribution margin − spend, every campaign — what advertising added to the bank.
What the file tells you every week
ROAS is not profit. Every product has a ROAS below which each sale loses money — this sheet finds it, judges every campaign against it each Monday, and plans next month's budget by what actually made money, not what had the best-looking number.
Store owners and freelance media buyers running Google, Meta or TikTok ads for products with real COGS.

Excel 2016+ or Microsoft 365. Or upload the .xlsx to Google Drive — it opens in Sheets with formulas and charts intact.
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