The PnL amongst $t$ and $T$ will be the sum of all incrementals PnLs. Which is if we denote by $PnL_ uto v $ the PnL in between situations $u$ and $v$, then Do I really need to multiply the entry or exit costs with the leverage in the slightest https://bookmarkforest.com/story19187492/not-known-factual-statements-about-pnl