# Percent Off Calculator > Calculate the final price after applying one or more percentage discounts. Page: https://askcalculators.com/calculator/percent-off-calculator/ Definition: https://askcalculators.com/calculator/percent-off-calculator/definition.json JSON Schema: https://askcalculators.com/calculator/percent-off-calculator/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/calculator/percent-off-calculator/?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.