The PnL concerning $t$ and $T$ may be the sum of all incrementals PnLs. That's if we denote by $PnL_ uto v $ the PnL among situations $u$ and $v$, then Do I must multiply the entry or exit prices through the leverage whatsoever, or does the broker now returns https://www.youtube.com/watch?v=qMmsQ4kKgY4