Rollup SUM at Hierarchy Top Node

Dear Experts,

I am working on a Webi report and facing this issue of rolling up values at hierarchy top node. Requirement is to display the SUM of ALL the Child nodes (including Parent node value) at Parent node.

Could someone please help me with this. I have tried FOREACH/FORALL, IN funtions but no luck. I am sure I am missing something here, please guide.

Attached is the image of report data.

1-0924003    --- 600 (100 is the value for this parent node itself, hence adding into TOTAL value making it 600, as show in image above)

1-0924003.01    --- 100

1-0924003.02    --- 200

1-0924003.03    --- 200

Regards,

Ayaz