Percent means out of 100. We can use the percent symbol % as a way to write a fraction with a common denominator of 100. For example instead of saying 8 out of 100 professional basketball players are female we can say 8% of professional basketball players are female.

Percents can always be written as a decimal and the decimal can written as a percent. You can do this by

moving the the decimal point two places to the right like this: