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} / _{100} = ^{Part} / _{80000}

Cross multiply:

5 x 80000 = 100 x Part, or

400000 = 100 x Part

Now, divide by 100 and get the answer:

Part = ^{400000} / _{100} = 4000

Use again the same percentage formula:

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

^{%} / _{100} = ^{5} / _{80000}

Cross multiply:

% x 80000 = 5 x 100

Divide by 80000 and get the percentage:

% = ^{5 x 100} / _{80000} = 0.00625%