See the solutions to these problems just after the percentage calculator below.

Here are the solutions to the questions stated above:

Always use this formula to find a percentage:

^{%} / _{100} = ^{Part} / _{Whole} replace the given values:

^{9} / _{100} = ^{Part} / _{8/10}

Cross multiply:

9 x 8/10 = 100 x Part, or

7.2 = 100 x Part

Now, divide by 100 and get the answer:

Part = ^{7.2} / _{100} = 0.72

Use again the same percentage formula:

^{%} / _{100} = ^{Part} / _{Whole} replace the given values:

^{%} / _{100} = ^{9} / _{8/10}

Cross multiply:

% x 8/10 = 9 x 100

Divide by 8/10 and get the percentage:

% = ^{9 x 100} / _{8/10} = 1125%