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:

^{90} / _{100} = ^{Part} / _{30}

Cross multiply:

90 x 30 = 100 x Part, or

2700 = 100 x Part

Now, divide by 100 and get the answer:

Part = ^{2700} / _{100} = 27

Use again the same percentage formula:

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

^{%} / _{100} = ^{90} / _{30}

Cross multiply:

% x 30 = 90 x 100

Divide by 30 and get the percentage:

% = ^{90 x 100} / _{30} = 300%

- twenty five percent of 65.99
- 6.3 percent of four hundred
- 4.4 percent of one over eight
- thirteen percent of 1600
- six percent of 28.99
- 5.1 percent of 190
- 50 percent of one over four
- twenty six percent of six hundred
- 45 percent of one twelfth
- twenty eight percent of three hundred
- 5.3 percent of 80
- 1.9 percent of 4/5