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:

^{5.5} / _{100} = ^{Part} / _{18}

Cross multiply:

5.5 x 18 = 100 x Part, or

99 = 100 x Part

Now, divide by 100 and get the answer:

Part = ^{99} / _{100} = 0.99

Use again the same percentage formula:

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

^{%} / _{100} = ^{5.5} / _{18}

Cross multiply:

% x 18 = 5.5 x 100

Divide by 18 and get the percentage:

% = ^{5.5 x 100} / _{18} = 30.555555555556%