I create two group in a report, for example in group1(ID) 110116, the data items are like the following: 110116 (group1) TC0012 1 1 (1) TC0011 1.5 1.5 (1.5) TC0010 1.5 1.5 (1.2) I need a sum 1 + 1.5 + 1.5 = 4 , but I always get 8 when I use sum(fields, scope) in reporting services. Is there any way to...