Divide the percentage by 100:
So 1215% = 12.15
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You change three percent to a decimal.
Not hard at all. To change a percent to a decimal, express the percent as a decimal and simply move the decimal to the lefttwo places:45.0% = 0.45
4.0=decimal. 100%=percent
Change the percentage to a decimal by taking the percent and pitting it behind the decimal and to change it to a fraction put the percent under 100
To change a decimal to a percent, multiply the decimal by 100. Example: 1.5 x 100 = 150%