Percentage Calculator Online
Four percent calculations in one place: P% of a number, what percent X is of Y, percent change, and increase or decrease by P%. Instant and free.
Result
50
Frequently asked questions
How do I calculate 25% of 200?
Choose the "P% of X" mode: enter P = 25 and X = 200 — the result 50 appears instantly.
How do I find the percent change?
Use "% change X → Y": enter the old and new values. A positive result means growth, negative means a decline.
How do I add a markup or discount?
In "X ± P%" mode enter the percent and the base amount, then pick increase or decrease — e.g. a price with 20% VAT or a 15% discount.