How do you turn a decimal into a percent?

Question

For example, 0.15 is the same as 15%. How do you get the decimal to become a percent? What is the math behind it? How did you get 0.15 (the decimal) to become 15% (the percent)?

Answer 1

This always used to stump me when practicing math, but this can easily be done by multiplying or dividing by 100.

Any decimal that you would like to turn into a percentage can be done by multiplying by 100.

Example: 0.15 x 100 = 15

Any percentage that you would like to turn into a decimal can be done by dividing by 100.

The operation you used depends on what you're converting to.

Answer 2

move the decimal to the right 2 digits, to convert a decimal to a percent

.xy = xy%

where x and y are integers between 0 and 9

.09 = 9%

.09= 9/100 = 9 per 100 = 9 per cent= 9%

100% = 1.00 = 1

in probability theory 1 or 100% is the maximum possible odds. 100% = certainty, although nothing is certain in the empirical world. 0% means impossible, but nothing is absolutely impossible.

a fair coin (that doesn't somehow land on its edge) has odds of 50% heads or 50/100= 5/10 = 1/2 = 0.50

flip a two headed coin twice, odds of a tail is 0% = 0.00 = 0

the only probability where 0% = 0 in decimal form, the same digit