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# How much is 8.1 of nine

Using this tool you can find any percentage in three ways. So, we think you reached us looking for answers like: 1) What is 8.1 percent (%) of nine? 2) 8.1 is what percent of nine? Or may be: How much is 8.1 of nine?

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

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## How to work out percentages - Step by Step

Here are the solutions to the questions stated above:

### 1) What is 8.1% of 9?

Always use this formula to find a percentage:

% / 100 = Part / Whole replace the given values:

8.1 / 100 = Part / 9

Cross multiply:

8.1 x 9 = 100 x Part, or

72.9 = 100 x Part

Now, divide by 100 and get the answer:

Part = 72.9 / 100 = 0.729

### 2) 8.1 is what percent of 9?

Use again the same percentage formula:

% / 100 = Part / Whole replace the given values:

% / 100 = 8.1 / 9

Cross multiply:

% x 9 = 8.1 x 100

Divide by 9 and get the percentage:

% = 8.1 x 100 / 9 = 90%

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