Calculating percentage of a number is very simple,
If I got 42 out of 50 marks in my exam, How much percentage of marks did I get?
Marks scored= 42
Total marks=50
Percentage of marks = (Marks scored/Total marks)*100
That is, (42/50)*100=0.84*100= 84%
In the same way you can calculate percentage of any fraction.
If I got 42 out of 50 marks in my exam, How much percentage of marks did I get?
Marks scored= 42
Total marks=50
Percentage of marks = (Marks scored/Total marks)*100
That is, (42/50)*100=0.84*100= 84%
In the same way you can calculate percentage of any fraction.