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EXAM SCORE GUIDE

How to Calculate a Test Score Percentage

Turn points earned into a percentage grade with one division and one multiplication.

FORMULA

Test percentage = (points earned ÷ total points) × 100

STEP BY STEP

Use the formula in three steps

  1. 1

    Write down the points earned and the total possible points.

  2. 2

    Divide the earned score by the total score.

  3. 3

    Multiply the decimal by 100 and add the percent sign.

WORKED EXAMPLES

Check the calculation

42 out of 50(42 ÷ 50) × 10084%
73 out of 80(73 ÷ 80) × 10091.25%

ACCURACY NOTE

Round at the end

Keep at least two decimal places until the final step. Your school may use its own rounding and letter-grade rules.

FAQ

Common questions about this calculation

Should I use points earned or points missed?

Use the points earned as the numerator and the total possible points as the denominator.

Can the final percentage be higher than 100%?

Only if your grading system awards extra credit. The basic formula assumes the earned points do not exceed the total.

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