What is 9 out of 21 as a percentage?

When you ask "What is 9 out of 21?" you want to know what percent 9 is out of 21.

Here are step-by-step instructions showing you how we calculated 9 out of 21 as a percentage:

The first step is to divide 9 by 21 to get the answer in decimal form:

9 ÷ 21 ≈ 0.4286

Then, we multiplied the answer from the first step by one hundred to get the answer as a percentage:

0.4286 × 100 = 42.86%

We can prove that the answer is correct by taking 42.86 percent of 21 to get 9:

(21 × 42.86) ÷ 100 ≈ 9

Note that our calculator rounds the answers up to two decimals if necessary. Once again, the answer is as follows:

≈ 42.86%

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