Hi,
I would just debug the program and find out where that value is coming from. It could be read from a table or calculated (or both). Then call that same code in your report.
Laxman: - sorry, but writing a BDC to capture a transaction's output is a truly terrible idea 
. BDCs are hard to construct, they are slow, they fail for all kinds of reasons, and they are not future proof. I have never seen them used for fetching & reporting data. But thanks for participating.
cheers
Paul