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Can you tell me what I am calculating wrong?

d2lollis
New Member

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 DateCategoryGrade WeightingMajorMinorContent  
9/28/2023Major86 40%34.4    
9/27/2023Minor100 40% 40   
9/26/2023Content100 20%  20  
9/26/2023Minor100 40% 40   
9/26/2023Content100 20%  20  
9/19/2023Minor93 40% 37.2   
9/19/2023Content100 20%  20  
9/14/2023Major75 40%30    
9/14/2023Content70 20%  14  
9/14/2023Major90 40%36    
9/12/2023Minor  40%     
9/11/2023Content98 20%  19.6  
9/11/2023Minor98 40% 39.2   
9/7/2023Content100 20%  20  
9/7/2023Content100 20%  20  
9/1/2023Content100 20%  20  
8/31/2023Content100 20%  20  
8/31/2023Minor84 40% 33.6   
8/24/2023Content95 20%  19  
8/21/2023Major84 40%33.6    
8/17/2023Minor75 40% 30   
8/16/2023Content100 20%  20  
8/15/2023Content100 20%  20  
8/10/2023Content90 20%  18  
8/10/2023Content100 20%  20  
8/10/2023Content100 20%  20  
8/9/2023Minor87 40% 34.8   
8/2/2023Minor80 40% 32   
7/28/2023Minor88 40% 35.2   
7/28/2023Content100 20%  20  
7/26/2023Content100 20%  20  
          
    Total of weighted grades134322330.6  
    number of assignments          4.00          9.00        17.00  
    Average        33.50        35.78        19.45        88.72<< Totaled Grade
1 Reply
KritiS
Community Support Expert
Community Support Expert

Hi @d2lollis 

 

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

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