First of all I would like to apologize, I didn't mean to make you feel like I'm hurrying you.. I was just trying to analyze as well
That formula is correct.
1. No, the overall table's SOO is always the SOO of the first sub LOB indicated per main LOB. Or maybe we can just add another Sub LOB saying Overall so it will be easier as we will still use the code that you wrote above. Anyway I will also put a column for headcount for each LOB so I think I'll just put another Sub LOB saying Overall
2. Yes
3. No