Display the net profit/loss of 2 positions combined

Get the net profit of one; get the net profit of the other. Add them together.

Thanks, Einstein... It takes too much time so I need a faster solution. 

Not sure who is the Einstein here but without adding the two up, it is not possible.

It is the fastest XD

1. A few microseconds takes too much time? Then you need a super-computer.
2. You want to be insulting, live in ignorance. On My do not help list.