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:

^{2} / _{100} = ^{Part} / _{90}

Cross multiply:

2 x 90 = 100 x Part, or

180 = 100 x Part

Now, divide by 100 and get the answer:

Part = ^{180} / _{100} = 1.8

Use again the same percentage formula:

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

^{%} / _{100} = ^{2} / _{90}

Cross multiply:

% x 90 = 2 x 100

Divide by 90 and get the percentage:

% = ^{2 x 100} / _{90} = 2.2222222222222%