Percentage Calculator
Solve three types of percentage problems in one tool. Calculate X% of a number, find what percent one value is of another, and compute percentage increase or decrease.
How It Works & Formula
Percentage of a value: X% of Y = (X/100) x Y. Percent one of another: (X/Y) x 100. Change: ((to - from) / from) x 100.
Frequently Asked Questions
How do I calculate a percentage increase?
Subtract the original value from the new value, divide by the original value, and multiply by 100.
How do I find what percent one number is of another?
Divide the first number by the second and multiply by 100.
Can it handle percentage decrease?
Yes, the same formula works and the result is shown as a decrease when the new value is lower.