Need help on creating a variable in WEBi Report

Dear Exports,

I am using BO4.1. Have created a WEBi Report in which I have a variable showing a some LOB's as mentioned below,

Where I need to showcase a chart for this. But I need overall count and have to create "Overall" as like Bank, Creadit card , Depit card is getting displayed.

Please help me creating a logic.

Thanks in Advance,

Bala Krish