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:

^{8.3} / _{100} = ^{Part} / _{55}

Cross multiply:

8.3 x 55 = 100 x Part, or

456.5 = 100 x Part

Now, divide by 100 and get the answer:

Part = ^{456.5} / _{100} = 4.565

Use again the same percentage formula:

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

^{%} / _{100} = ^{8.3} / _{55}

Cross multiply:

% x 55 = 8.3 x 100

Divide by 55 and get the percentage:

% = ^{8.3 x 100} / _{55} = 15.090909090909%