General calculator
Percentage Increase Calculator
Calculate how much a value increased or decreased.
Last reviewed
September 2026
September 2026
Enter your details
Results update privately in your browser.
How we calculate
A transparent estimate you can inspect.
Formula
(New value − original value) ÷ original value × 100.
Privacy
Your values are calculated locally and are not sent to a server by this calculator.
Use with care
Results are for informational purposes, not financial, tax, legal, lending, or investment advice.
Common questions
Before you decide
Is this calculator free?
Yes. Calculations run in your browser and no account is required.
Are results exact?
Results follow the stated formula. Round currency outputs appropriately for real-world decisions.