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:

^{31} / _{100} = ^{Part} / _{500}

Cross multiply:

31 x 500 = 100 x Part, or

15500 = 100 x Part

Now, divide by 100 and get the answer:

Part = ^{15500} / _{100} = 155

Use again the same percentage formula:

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

^{%} / _{100} = ^{31} / _{500}

Cross multiply:

% x 500 = 31 x 100

Divide by 500 and get the percentage:

% = ^{31 x 100} / _{500} = 6.2%