Sum based on prompt

Hello All,

I have a report(requirement) where i need to display total for data based on the inputs in selection prompt. More details in the attachment.

for Prompt RSo : if i select 1 value ex: APP then it should display totals for Data for APP.

and when I select 2 values for prompt  APP and BWPO . The report should display totals for App in one section and in 2nd section for BWPO and Totals for both APP and BWPO.

The first 2 images are from cognos, 3 image is from webi i need to create

How can I accomplish this?

Any inputs highly appreciated.

Thanks.