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Margin Calculator

Calculate profit margin and markup percentage from a selling price and cost — for pricing any product or service.

Cómo usar esta herramienta

  1. 1Paste or type your input above.
  2. 2The result updates instantly.
  3. 3Copy the output with one click.

Preguntas frecuentes

How do I calculate profit margin?+

Profit margin = (revenue − cost) ÷ revenue × 100. If you sell for $100 at a $70 cost, the $30 profit is a 30% margin (and a 42.9% markup on cost).

Is my data private?+

Yes. The tool runs entirely in your browser — nothing you paste or type is uploaded to a server.

Guías y explicaciones a fondo

eBay Seller Fees Explained: Final Value Fees, Pricing and Net Payout

Understand eBay's final value fees, the per-order fee, how shipping and tax factor in, and how to price items so you net the amount you actually want after fees.