Calculating Final Grades With Weighted Marks

Question:

I'm working on an assignment for my class and the question is..

11. Using a formula, calculate the final grades as a whole number out of 

100 (not a percentage).  The final grade should not have decimal places.  

Use the round function to accomplish this, rather then a formatting 

option. Use the following grading scheme 

a. Assignment 1 - 10% 

b. Assignment 2 – 15%

c. Assignment 3 – 20% 

d. Quizzes (Best 7) – 20% 

e. Final Exam – 35%

Use absolute cell referencing of the maximum marks located at the 

top of each column in the spreadsheet. DO NOT hard code maximum 

marks into the formula. 

So I need to know what the formula is that I should be using is?

Solution:

Make a sheet which will have Column headers in Row 1, 'Total Marks' of assignment in Row 2, Weight of each Assignment in Row 3, and Marks obtained in Row 4.
Have a look at the screenshot below:

Put the following formula in Cell D8:
=ROUND(((B4*B3)+(C4*C3)+(D4*D3)+(E4*E3)+(F4*F3))/((B2*B3)+(C2*C3)+(D2*D3)+(E2*E3)+(F2*F3))*100)

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