text: formula to figure grade percentage in excel?   =(average(numerical grade))*percent of total grade =(average(numerical grade))*percent of total grade =(average(numerical grade))*percent of total grade =(average(numerical grade))*percent of total grade =sum(of all the above)  example:  exams 50% (84,51)......33.75 labs 4%	(10,10,10,10,10,10,10)....4.00 lab exam 6% (82)....4.92 final 40% (76)...30.40  grade 73.07