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How to calculate a discounted price and amount saved

Published by Navon Ventures S.A.S · October 27, 2026

A percentage discount identifies the share removed from an original price. The discounted price is the share remaining. Keeping these amounts separate avoids reporting money saved as money payable. This calculator models a single percentage discount before separately added charges or commercial conditions.

Which inputs to use

Original price

Use the price to which the reduction applies. Check that it is the relevant starting amount rather than a previous discounted total.

Discount percentage

Enter a percentage from zero to 100. A 15% reduction leaves 85% of the original price, represented by a factor of 0.85.

Formula and worked example

Original price × (1 − discount ÷ 100)

On a $200 original price with 15% off, the saving is 200 × 0.15 = $30. The remaining price is 200 × 0.85 = $170. The calculator reports the $170 price. Adding the $30 saved to $170 paid recovers the original $200.

Common interpretation mistakes

Two successive discounts do not generally equal their summed percentages. On $200, a 20% reduction leaves $160; another 10% off leaves $144. The combined reduction is $56, or 28% of the original, not 30%. Promotion conditions can also restrict the items or charges receiving a discount.

Assumptions and limits

Zero discount leaves the price unchanged and 100% leaves zero before additional charges. Shipping, taxes and minimum-order conditions are excluded. A business discount also changes the selling price used in a margin calculation. Compare that final amount with included costs rather than assuming profit falls by the same percentage as price.

You can also explore Profit margin.