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:

^{1.1} / _{100} = ^{Part} / _{80}

Cross multiply:

1.1 x 80 = 100 x Part, or

88 = 100 x Part

Now, divide by 100 and get the answer:

Part = ^{88} / _{100} = 0.88

Use again the same percentage formula:

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

^{%} / _{100} = ^{1.1} / _{80}

Cross multiply:

% x 80 = 1.1 x 100

Divide by 80 and get the percentage:

% = ^{1.1 x 100} / _{80} = 1.375%