Percentage Calculator

Four different percentage calculations in one place — instant results as you type.

What is X% of Y?
% of
=
Result—
What % is X of Y?
is what % of
Result—
Percentage increase from X to Y
→
Change—
X is Y% — what is the original value?
is
% of original
Original value—
Percentages — FAQ
How do I calculate percentage manually?
To find X% of Y: multiply Y × (X/100). Example: 15% of 200 = 200 × 0.15 = 30. To find what percent X is of Y: divide X by Y and multiply by 100. Example: 30 is what % of 150 = (30/150) × 100 = 20%.
How do I calculate percentage increase?
Percentage increase = ((New value − Old value) / Old value) × 100. Example: from 80 to 100 = ((100−80)/80) × 100 = 25% increase. If the result is negative, it's a percentage decrease.
How do I find the original price after a discount?
If something costs $60 after a 25% discount, the original price = $60 / (1 − 0.25) = $60 / 0.75 = $80. Use the 4th calculator above: enter 60 as the known value and 75 as the percentage (since $60 is 75% of the original).