Grading Scale: Letters and Percentages
A+: 98 - 100
A: 93 - 97
A-: 90 - 92
B+: 87 - 89
B: 83 - 86
B-: 80 - 82
C+: 77 - 79
C: 73 - 79
C-: 70 - 72
F: 69 and below