$ Now you say $V_t$ could be the dangerous asset. Pretty complicated. Edit the write-up to produce this crystal crystal clear. We could give thought to what is a PnL when we know very well what we have invested in. $endgroup$ $begingroup$ The pnl calculation is completed in 2 techniques. https://kameronidwoe.luwebs.com/34800838/helping-the-others-realize-the-advantages-of-pnl