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## Can you tell me what I am calculating wrong?

I have been back and forth with the school about why I calculated a weighted grade as an 89 and they have an 86. The teacher was offended I was checking and thought I was questioning weightings. I wasn't. The guidance counselor said they don't know anything about powerschool.  And the principal is trying to help but says her math team says it is my calculations.  However, no one will show me an actual 86 calculation.

What do I not understand about how powerschool calculates a weighted grade?

 Due Date Category Grade Weighting Major Minor Content 9/28/2023 Major 86 40% 34.4 9/27/2023 Minor 100 40% 40 9/26/2023 Content 100 20% 20 9/26/2023 Minor 100 40% 40 9/26/2023 Content 100 20% 20 9/19/2023 Minor 93 40% 37.2 9/19/2023 Content 100 20% 20 9/14/2023 Major 75 40% 30 9/14/2023 Content 70 20% 14 9/14/2023 Major 90 40% 36 9/12/2023 Minor 40% 9/11/2023 Content 98 20% 19.6 9/11/2023 Minor 98 40% 39.2 9/7/2023 Content 100 20% 20 9/7/2023 Content 100 20% 20 9/1/2023 Content 100 20% 20 8/31/2023 Content 100 20% 20 8/31/2023 Minor 84 40% 33.6 8/24/2023 Content 95 20% 19 8/21/2023 Major 84 40% 33.6 8/17/2023 Minor 75 40% 30 8/16/2023 Content 100 20% 20 8/15/2023 Content 100 20% 20 8/10/2023 Content 90 20% 18 8/10/2023 Content 100 20% 20 8/10/2023 Content 100 20% 20 8/9/2023 Minor 87 40% 34.8 8/2/2023 Minor 80 40% 32 7/28/2023 Minor 88 40% 35.2 7/28/2023 Content 100 20% 20 7/26/2023 Content 100 20% 20 Total of weighted grades 134 322 330.6 number of assignments 4.00 9.00 17.00 Average 33.50 35.78 19.45 88.72 << Totaled Grade
Community Support Expert

It looks like from your spreadsheet that you are doing category weighting. The general calculation that PowerTeacher Pro uses for category weighting for each category is:

(Total Points earned / Total Points Possible) * (Category weight %) = Category Sub score.

Then, each category sub-score is added together to reach the final grade.

Please let us know if this helps or if you have any further queries.

KritiS
Community Moderator