\noindent
Lab scores will be aggregated into a single final percentage score. This percentage score will be converted to a letter grade on the following scale:
A(93 -- 100), A--(90 -- 92.9), B+(87 -- 89.9), B(83 -- 86.9), B--(80 -- 82.9), C+(77 -- 79.9), C(73 -- 76.9), C--(70 -- 72.9), D+(67 -- 69.9), D(63 -- 66.9), D--(60 -- 62.9), F(<60).

Thus, for instance, if there are ten lab assignments in the semester and your scores are 85/100, 90/100, 80/100, 90/100, 88/100, 90/100, 100/100, 100/100, 99/100 and 60/100, then your final score is 882/1000 i.e.\ 88.2\%. Thus, your final grade is B+.