Letter	%		Range
A+	100		96.67 - 100
A	95		93.33 - 96.67
A-	91.67		90 - 93.33
		90
B+	88.33		86.67 - 90
B	85		83.33 - 86.67
B-	81.67		80 - 83.33
		80
C+	78.33		76.67 - 80
C	75		73.33 - 76.67
C-	71.67		70 - 73.33
		70