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Calculators · Finance and accounting tools

Product Selling Price Calculator

Set your selling price from cost, operating expenses, marketplace fees, profit margin, and VAT.

How profit is calculated

Estimate based on the rules as of 1 November 2026. Calculated on your device.

How it is calculated

  1. Cost per unit = cost per unit + (operating costs per month ÷ units sold per month).
  2. Margin: profit is a share of the selling price, price = cost ÷ (1 − margin − fee). Markup: profit is a share of cost, price = cost × (1 + markup) ÷ (1 − fee).
  3. If you are VAT-registered (PKP), VAT is added on top of the price: 12% × an 11/12 tax base for non-luxury goods (11% effective), or the full 12% for luxury goods.

A 30% margin means 30% of the selling price is profit; a 30% markup means price = cost + 30% of cost. For the same percentage, margin gives a higher price.