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
return to SHG main page