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ToolStaxx Tools that stack up

Food & Shopping

Discount Calculator

Calculate sale price and saving after a percentage discount.

Try an example:
Check whether any extra delivery, service or card fees apply before buying.

Notes and next steps

How it works

Work out the final price and saving after a percentage discount.

Comparison method: Saving = original price × discount percentage ÷ 100. Final price = original price − saving.

Worked example

20% off £80 saves £16 and leaves a final price of £64.

Common mistakes
  • Applying the discount to the wrong starting price.
  • Adding VAT or delivery after comparing discounts.
  • Assuming stacked discounts add together directly.
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