Question 1

How do I calculate percent of a number?

Accepted Answer

Multiply the number by the percent and divide by 100. Example: 25% of 80 is 20.

Question 2

What is percent change?

Accepted Answer

Percent change compares a new value to an old value. It is (new - old) / old * 100.

Question 3

How do I find the original number from a percent?

Accepted Answer

Divide the part by the percent and multiply by 100 to get the original number.

Percentage Calculator

Percent of a Number