Percents and Decimals

The word percent means “hundredths” or “divided by 100.”  The symbol % is used to represent percent.

            39% means 39 divided by 100 or

To convert a percentage to a decimal, remove the percent sign and divide by 100.  (You can achieve the same result by moving the decimal point two places to the left.)

            16.2% = 0.162

              25 % = 0.25

To convert a decimal to a percentage, multiply by 100 and add a percent sign.  (You can achieve the same result by moving the decimal point two places to the right.)

            0.065 = 6.5%

              3.75 = 375%

To change a fraction into a percentage, divide to find its decimal equivalent and then change the decimal to the percentage.

            15/20 = 0.75 = 75%