What are letter grades and how do they convert to percentages?

Common examples of grade conversion are: A+ (97–100), A (93–96), A- (90–92), B+ (87–89), B (83–86), B- (80–82), C+ (77–79), C (73–76), C- (70–72), D+ (67–69), D (65–66), D- (below 65).

However, the way letter grades convert to percentages can vary slightly from college to college and may even vary between departments in the same college.

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