Thank You very much for your reply Karthik.
We dont have many billing types to be displayed in this report. Its just 7 kinds of billing types.
"My suggestion would be to add a new key figure with the same calculations for the second billing type. Both should be have been restricted to the corresponding billing types and then make it as a calculated key figure. But this idea would be bad if you have many billing types in future."
- I will now check if this way I can resolve the issue.
But many thanks once again, if you have any other suggestion Please do suggest.
-Aparajit