Discount Calculator

What this tool does

The shop arithmetic you need in the queue. Note that two successive discounts do not add up: 20 % followed by another 20 % is a 36 % reduction, not 40 %, because the second one applies to an already reduced price.

Formula

final price = P × (1 − d ÷ 100)

Variables

Worked example

Limitations

• Tax rates and rounding rules differ between countries and sometimes between regions. Use the rate that applies to your invoice.
• The tool works with whatever currency you use for the inputs; it does not convert between currencies.