How to calculate a percentage?
What is
of the total
The number
increased by
The number  
decreased by
The number
is what percentage of
Le différence en pourcentage entre le nombre
et le nombre
What is a percentage?
In mathematics, a percentage is a number or a ratio that represents a fraction of 100. It is denoted by the symbol “%”.
What is the percentage formula?
A percentage is a number that represents a fraction of 100.
10% is actually 10/100
To calculate what the percentage of a number is:
Number / percentage
for example 10% of 200 we do
200 x (10 / 100) which is equal to : 200 x 0.1