The word percentage comes from the Latin per cent and means out of a hundred.
To change a percentage number to a decimal number, divide the percentage number by 100.
To change a decimal number into a percentage, multiply by 100.
Change this percentage to a decimal number: 46.5%
Divide 46.5 by 100 = 0.465.
Change 0.02 to a percentage.
Multiply 0.02 by 100 = 2.