# Percent Off Calculator

> Calculate the final price after applying one or more percentage discounts.

Page: https://askcalculators.com/math/percent-off/
Definition: https://askcalculators.com/math/percent-off/definition.json
JSON Schema: https://askcalculators.com/math/percent-off/schema.json
Version: 7.0.0
Maintained by: AskCalculators (software project; not a credentialed reviewer)
Qualified review: pending. Automated checks do not establish professional approval.
Page status: Live
Review status: Pending

## Use
Open the calculator page and enter values. Query-string parameters can restore and bookmark a calculation.
Example: https://askcalculators.com/math/percent-off/?originalPrice=100&percentOff=20&additionalOff=0

## Inputs
- originalPrice: Original Price; type=number; optional; default=100
- percentOff: Percent Off; type=number; optional; default=20
- additionalOff: Additional % Off (Stacked); type=number; optional; default=0

## Outputs
- result: Result; format=text; primary

## Formula
Discount amount = original price × percent off; sale price = original price − discount amount.

## Rules
- Empty optional inputs are undefined, not zero.
- Hidden conditional inputs are ignored.
- Do not invent missing required inputs.