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Profit & margin

Gross margin

Profit left after the cost of goods, as a percentage of revenue.

Gross margin is revenue minus cost of goods sold (COGS), divided by revenue. It sets the ceiling on your profitability — everything else (ads, fees, overhead) comes out of it. A high gross margin gives you room to spend on growth; a thin one doesn't.

Formula

Gross margin = (Revenue − COGS) ÷ Revenue × 100

Example: $100 revenue − $60 COGS = $40 (40% gross margin).

What a good result depends on

Varies by category; the key is enough headroom to fund ads and overhead.

Common mistakes

  • Confusing margin with markup — a 67% markup is a 40% margin.
  • Judging overall health on gross margin alone.
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