Calculate Column Subtotal in  Attribute View

Hi,

Is it possible to calculate the Column subtotal in Caluclation View itself likethe way we do in ALV.

I want to do this calculation in the Calculation View itself.

I thought of doing that through  Calculated Column but the SQL Function SUM() doesn't work there.

Below is how my Calculation View looks like:

I want the output to be like this (Highlighted in Green):

I am getting the field Allocation from my Attrbute View ZAT_VBRK_VBRP(Join of table VBRK and VBRP) and ZVBAK is just an attribute view for VBRK.

Thanks,

Gaurav