I'm not going there entirely, since I've seen the entire spectrum. I was mostly a B/C High School and Middle School, not too much interesting there. But college, that's when things got crazy.
Highest
A+ (101%)
GER 201, GERMAN III
Junior Year, College (2014)
Lowest
F (59%)
BIO 228, HUMAN ANATOMY
Freshman Year, College (2011)
So, uh, how exactly do you get a greater than 100% grade?
Also, is 59% really a failing grade in the US??? Oof
Yes Generally its like this
60%-69%: D
70%-79%: C
80%-89%: B
90%+ : A
The + and - to your grade varies between universities but this type of grade scale is what is normal.