Grading Scales:

95 - 100 = A
91 - 94 = A-

87 - 90 = B+
83 - 86 = B
79 - 82 = B-

75 - 78 = C+
71 - 74 = C
67 - 70 = C-

63 - 66 = D+
59 - 62 = D
55 - 58 = D-