Wow, that grading scale is much different than anything I'm used to :O

In public school, it is:

A 90-100%
B 80-89%
C 70-79%
D 60-69%
F 50-59%

And while I was in college, it was:

A 93-100%
B 85-92%
C 75-84%
D 70-74%
F anything below 70%