Q:

How do I convert a test score to a percentage?

A:

The easiest way to convert a test score to a percentage is to first divide the number of correct answers by the number of total questions. Then, multiplying this ratio by 100 percent gives the percentage score.

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For example, if there are 25 questions on a test and a student gets 22 of them correct, then the test score percentage is (22/25) * 100 = 88 percent. If the number of questions the student answered correctly is not known, but the number answered incorrectly is known, an alternative method of calculation is ((total questions - number wrong) / total questions) * 100 percent. In the example above, the student would have gotten three questions incorrect; therefore, the test score percentage is calculated as ((25 - 3) / 25) * 100 = 88 percent.

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