Am having problem with calculating POINTS and DIVISIONS using excel. For example, if a student scores D,A,F,D,C,B,A,A,F,C,C,B, in say twelve subjects. Manually one can calculate this by taking any seven subjects that a student performed highly out of the twelve ie A,A,A,B,C,C and C. Where A=1,B=2,C=3,D=4,F=5. Therefore the total points for these seven subjects is 14. Now this is DIVISION ONE(1) of POINTS 14. Division 1 starts with point 7-17, Division Two(11) point 18-21, Division Three point 22-25, Division 1V point 26-33 and Division Zero 34-35. So please help me calculating this automatic in excel.