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:

^{27} / _{100} = ^{Part} / _{3/10}

Cross multiply:

27 x 3/10 = 100 x Part, or

8.1 = 100 x Part

Now, divide by 100 and get the answer:

Part = ^{8.1} / _{100} = 0.81

Use again the same percentage formula:

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

^{%} / _{100} = ^{27} / _{3/10}

Cross multiply:

% x 3/10 = 27 x 100

Divide by 3/10 and get the percentage:

% = ^{27 x 100} / _{3/10} = 9000%