Calculation - Buy - Sell

Hi all

I need some kind of calculator, how much position BUY or SELL is opened and to calculate how much lots is needed to be on BUY or SELL side to be HEDGE.

In attach is example: Opened BUY positions 0.80 lot, SELL position 2.6 lot. So difference for hedge is 1.8 lot for BUY side. Then will be 2.6 on BUY side and 2.6 on SELL side

Thank you all