Percentage Calculator
Three modes for the percentage questions you actually ask.
Inputs
Result
20% of 150
30.00
Visual breakdown
Percent applied30
Of value150
Formula
% of = (P/100) × V · is what % = (X/Y) × 100 · increase = V × (1 + P/100).
Example
20% of 150 = 30. 20 is 13.33% of 150. 150 increased by 20% = 180.
Frequently asked
How do I find what percent X is of Y?
Use the “is what %” tab. Enter X (the part) and Y (the whole).
Does it support negatives?
Yes — negative percents work and produce a decrease.
What if the whole is zero?
Dividing by zero is undefined, so the result is blank.