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Per-ASIN contribution-margin waterfall — sale price minus Amazon fees, COGS, returns, and ad spend — feeding a scale, hold, fix, or cut decision for Amazon advertising in 2026
Advertising17 min read

The Per-ASIN Profit Model: Using TACoS and Contribution Margin to Decide What to Scale and What to Cut

ACoS optimizes a campaign. Contribution margin optimizes a business. Here's how to build a per-ASIN profit model — true margin after fees, returns, and ad spend — and use TACoS to decide which products to scale, hold, fix, or cut in 2026.

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