You need to know the total available points. 50 out of 100 points is 50%. 50 out of 80 points is 62.5%
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31.25 points.
28.5%
A reduction of 20 percentage points.
It depends on what you're trying to calculate a percentage for. On a homework, test, or other scholastic assignment it would be:Total Points Earned ÷ Total Points Possible.Example: 45 points earned on a test totaling 50 points. 45 ÷ 50 = .90 or 90%
40% of the grade of 96 and 60% of the grade of 50 gives (.4x96+.6x50) = grade of 68