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:

^{4.8} / _{100} = ^{Part} / _{400}

Cross multiply:

4.8 x 400 = 100 x Part, or

1920 = 100 x Part

Now, divide by 100 and get the answer:

Part = ^{1920} / _{100} = 19.2

Use again the same percentage formula:

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

^{%} / _{100} = ^{4.8} / _{400}

Cross multiply:

% x 400 = 4.8 x 100

Divide by 400 and get the percentage:

% = ^{4.8 x 100} / _{400} = 1.2%