Percentage calculator
Exact calculation2026 figuresFreeNo sign-up
What is% of12
is what % of25%
Fromtochanged by+25%
with a discount of% is35
with an increase of% is1,050
How it was calculated
X% of Y = Y × X ÷ 100. For the change: (final − starting) ÷ starting × 100. Note: going up 50% and then down 50% does not bring you back to the same value.
Exact calculation: A fixed formula with official values: the result is exact for the figures you enter.
Frequently asked questions
How do I calculate 15% of 80?
Multiply 80 by 15 and divide by 100: it gives 12.
How do I calculate a percentage increase?
(Final value − initial value) ÷ initial value × 100. From 80 to 100 is a 25% increase.