Hope the attached image file will have the solution for your problem.
In table properties ---> Expression--> Total Mode ---> Select Sum of Row Total instead of Expression Total.
solution.PNG 80.4 K
Thank Ashok for your reply,
but what is the different if between Expresion and total mode?
On my Total of QTY that is correct.
And i found Qlikview don't allow me if i use expression as a field for doing my condition set.
example for below, sample B and C is workable but the sample A will show me an error "bad fields name "Level""
mean system not allow me to sum if "Level" is not a field. Any idea?
Sum(if(Level = 'A', (Qty)))
if (Level = 'A', sum(Qty))
sum(if(Item = 'A1',Qty,))