Percentage Calculator
Every everyday percentage question — percent of, percent change, increase and discount.
- Processed locally — your files never leave your device
- Free, no sign-up
- No file limits
What is% of
30
is what % of
25%
% change fromto
+25% (increase)
Increase/decreaseby %
550,000 / 450,000
How to use Percentage Calculator
- 1
Pick the question that matches yours.
- 2
Type the two numbers.
- 3
The answer updates as you type.
Features
- Four calculatorsPercent of, what percent, change, and increase/decrease.
- Shopping & financeDiscounts, markups, growth and tax in seconds.
- Decimal commasBoth 12.5 and 12,5 are understood.
Frequently asked questions
How is percent change calculated?
(new − old) ÷ |old| × 100.
How do I work out a 20% discount?
Use Increase/decrease: the second number is the price after the discount.
Is it free?
Yes.