What are you grouping by?
For example:
I. Year Month Date Sum will give you sum per date
II. Year Month Sum will give you sum per month
III. Year Sum will give you sum per year
Resp Group CountofResp Group SumofcountofResp Group
IA110/210 1 525
IA120/220 1 620
I'm not sure I'm interpreting this correctly, but if you're trying to add 525 and 620 you need to get rid of whatever field is generating [IA110/210] and [IA120/220]. So long as this field displays two separate results the sums will not be added.