Hi Hui,
Above is the normal things which i have already done. but the question remains the same.
1. Bill Count is the main count fill Suppose its 1 in this we are having sub parameter like billpen is the sub count ie. 1,1,1,1.. So this each 1,1,1, needs to be devide by SUM of Bill count of that particular week.
Hope you understand.
Regards
Istiyak