The Singing Hedgehog Guide to:
Percentages - to decimals

The most important thing to remember about percentages is that they are just fractions in disguise.

"Per - cent" means "out of a hundred".

All we have to do is to change into hundredths and then into decimals:

75% = 75/100 = 0.75

Need to look out for small numbers and fractional values:

5% = 5/100 = 0.05        it's not 0.5 !!!


12.5% = 12.5/100 = 0.125        it's not 1.25 !!!

One hundred percent is of course 100/100 which is one.
So a percentage larger than one hundred will need a whole number as well:

135% = 1.35

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