How to Calculate Your Grade
The grade is divided into four components: homework, classwork, tests, and the final exam. Within each component, individual papers are graded on a 100 point scale.
An average grade for each of the components is calculated from the papers in the component.
The final grade average for the quarter is calculated by taking a weighted sum of the four components. The formula is: .10xClasswork Grade + .30xHomework Grade + .30xTest grade + .30xFinal Exam Grade = Final Quarter Average.
The final quarter average is then converted to a decimal final grade using the grade table. The grade table is shown below.
Grade Average 
Decimal Grade 
Grade Average 
Decimal Grade 
89.5100 
4.0 
72.573.5 
2.3 
88.589.5 
3.9 
71.572.5 
2.2 
87.588.5 
3.8 
70.571.5 
2.1 
86.587.5 
3.7 
69.570.5 
2.0 
85.586.5 
3.6 
68.569.5 
1.9 
84.585.5 
3.5 
67.568.8 
1.8 
83.584.5 
3.4 
66.567.5 
1.7 
82.583.5 
3.3 
65.566.5 
1.6 
81.582.5 
3.2 
64.565.5 
1.5 
80.581.5 
3.1 
63.564.5 
1.4 
79.580.5 
3.0 
62.563.5 
1.3 
78.579.5 
2.9 
61.562.5 
1.2 
77.578.5 
2.8 
60.561.5 
1.1 
76.577.5 
2.7 
59.560.5 
1.0 
75.576.5 
2.6 
5859.5 
0.9 
75.575.5 
2.5 
56.558 
0.8 
73.574.5 
2.4 
5556.5 
0.7 

0.055 
0.0 
Example 1. Suppose a person got the following component averages: Classwork 90, Homework 88, Tests 75, and Final Exam 68. What would be the final decimal grade?
The final grade average would be . From the grade table, a 78.3 final grade average translates to a decimal grade of 2.8.
Example 2. Suppose a person had component grade averages of Classwork 85, Homework 87, and Tests 86, and wanted to calculate what grade would be necessary on the final exam to get a decimal grade of 4.0 for the class.
The formula to use is
In the example, a decimal grade of 4.0 shows on the table a final grade average of 90. Plugging the numbers into the formula:
A final exam grade of 98.7 would be required to get a 4.0 for the quarter decimal grade.