Assignment(optional) Grade (letter) Grade (%) Weight -- A+ A A- B+ B B- C+ C C- D+ D D- F -- A+ A A- B+ B B- C+ C C- D+ D D- F -- A+ A A- B+ B B- C+ C C- D+ D D- F -- A+ A A- B+ B B- C+ C C- D+ D D- F -- A+ A A- B+ B B- C+ C C- D+ D D- F -- A+ A A- B+ B B- C+ C C- D+ D D- F -- A+ A A- B+ B B- C+ C C- D+ D D- F -- A+ A A- B+ B B- C+ C C- D+ D D- F Total:
Find additional grade needed to get average grade of (assumes weights in %)
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## Weighted grade calculation

The weighted grade is equal to the sum of the product of the weights (w) in percent (%) times the grade (g):

Weighted grade = w1×g1+ w2×g2+ w3×g3+...

#### Example

Math course with grade of 80 and weight of 30%.

Biology course with grade of 90 and weight of 50%.

History course with grade of 72 and weight of 20%.

The weighted average grade is calculated by:

= w1×g1+ w2×g2+ w3×g3

= 30%×80+ 50%×90+ 20%×72 = 83.4

When the weights are not in percent (hours or points...), you should also divided by the sum of the weights:

w1×g1+ w2×g2+ w3×g3+... w1+w2+w3+...

#### Example

3 points Math course with grade of 80.

5 points Biology course with grade of 90.

2 points History course with grade of 72.

The weighted average grade is calculated by:

=
w1×g1+ w2×g2+ w3×g3 w1+w2+w3
=
3×80+ 5×90+ 2×723+5+2
= 83.4

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