92-100
=
A
89-91
=
A-
87-88
=
B+
83-86
=
B
80-82
=
B-
77-79
=
C+
73-76
=
C
70-72
=
C-
67-69
=
D+
63-66
=
D
60-62
=
D-
0-59
=
E