# How much is 90 percent of thirty one

Using this tool you can find any percentage in three ways. So, we think you reached us looking for answers like: What is 90 (90%) percent (%) of thirty one (31)? Or may be: How much is 90 percent of thirty one. See the solutions to these problems just after the percentage calculator below.

See the solutions to these problems just after the percentage calculator below.

## How to work out percentages - Step by Step

Here are the solutions to the questions stated above:

### 1) What is 90% of 31?

Always use this formula to find a percentage:

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

^{90} / _{100} = ^{Part} / _{31}

Cross multiply:

90 x 31 = 100 x Part, or

2790 = 100 x Part

Now, divide by 100 and get the answer:

Part = ^{2790} / _{100} = 27.9

### 2) 90 is what percent of 31?

Use again the same percentage formula:

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

^{%} / _{100} = ^{90} / _{31}

Cross multiply:

% x 31 = 90 x 100

Divide by 31 and get the percentage:

% = ^{90 x 100} / _{31} = 290.32258064516%