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This online tool calculates the percentage for given numbers. Percentage is a number expressed as fraction of 100.

Following are the types of problems in percentage calculation.

1. What is 5 % of 300 ?
Ans:
        Given, percentage=5, y=300, x=?

        Percentage=(x/y)×100
         x=(percentage/100)×y
        (5/100)×300=15

2. 28 is what percent of 200 ?
Ans: 
       Given, x=28, y=200, percentage=?

       Percentage=(x/y)×100
       (28/200)×100=14

3. 45 is 8 % of what ?
Ans:
         Given, percentage=8, x=45, y=?

         Percentage=(x/y)×100
          y=x×(100/percentage)
         45×(100/8)=562.5

4.what is percentage increase from 75 to 98 ?
Ans:  [(98-75)/75]×100=30.66 %