To work out 10%, just divide it by 10.
To work out 1%, just divide it by 100.
To work out 16%, just
A) Work out 10% (divide by 10), then work out 6% (divide by 100, times by 6) and add the two together
B) Divide by 100, times the result by 16.This applies for all numbers.
To work out 90%, just
A) Work out 10% and take it away
B) Divide by 100, times the result by 90
C) Work out 10%, times by 9.
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Because that it s harder to work out percentages than fractions and decimals
27/50 = 54/100
Double it - to give 90 out of 100 - or 90%
Percentages are always use when comparing one number to another. With you only providing one number Percentages doesn't work very well.
Percentages are percentages - simple! The marketing people have not yet come up with "new improved" percentages.