Back to Unit 1 Numeration

Changing from Decimal to Percent and back

Since Percent means per one hundred or out of one hundred:

To Change from Decimal to percent:

                        Multiply by 100 or move the decimal point two places to the right:

                                           For example:       .32 = 32%                   .32 100 = 32 

                                                                   2.5 = 250%                   2.5 100 = 250

 

To Change from Percent to decimal:

                       Divide by 100 or move the decimal point two places to the left:

                                    For example:       48% = .48                  48 100 = .48

                                                                   100 % = 1                100100 = 1

                                                                33⅓% = .33                33.3100 = .333