Percent Calculator

You can use percentage calculators to calculate various percentage calculations.

For example, you can calculate how much a number changes when the number is increased or decreased by a certain percentage. You can also calculate a number corresponding to a specific percentage from a given number.

Percentage of a value calculation

x% of the number y is calculated by the formula:
x% × y = (x/100) × y
For example, 60% of the number 500 is calculated by the formula:
60% × 500 = (60 / 100) × 500 = 300

Percentage calculation

The percentage of x from y is calculated by the formula:
percentage = (x / y) × 100%
For example, 40% of 80 is calculated by the formula:
(40 / 80) × 100% = 50%

Percentage change calculation

The percentage change from x1 to x2 is calculated by the formula:
Change percent = 100% × (x2 - x1) / x1
For example, when the number increases from 80 to 100:
100% × (100 - 80) / 80 = 25%
For example, when the number decreases from 100 to 80:
100% × (80 - 100) / 100 = -20%

Percent %

Per-cent refers to the number of hundredths.

One percent is equal to 1/100 fraction:
1% = 1/100 = 0.01

Ten percent is equal to 10/100 fraction:
10% = 10/100 = 0.1

Fifty percent is equal to 50/100 fraction:
50% = 50/100 = 0.5

One hundred percent is equal to 100/100 fraction:
100% = 100/100 = 1

One hundred and fifty percent is equal to 150/100 fraction:
150% = 150/100 = 1.5

Percent sign

The percent sign is a symbol: %
The symbol is placed to the right of the number: 10%

Definition of percentage

Percentage is a value that represents the ratio of one number to another.
1 percent is equivalent to 1/100.

100% (100%) of the number is the same as the number:
100% × 60 = 100/100×60 = 60

50 percent (50%) of the number is half the number:
50% × 100 = 50/100×100 = 50
That is, 50% of the number 100 is 50.