A = 100+
A  = 94% - 99%
A- = 93%
B+ = 92%
B  = 86% - 91%
B- = 85%
C+ = 84%
C  = 78% - 83%
C- = 77%
D+ = 76%
D  = 70% - 75%
D- = 69%
F  = 0% - 68%
I = Incomplete