The purpose of the P&L assertion is to show a firm’s revenues and expenditures around a specified time period, ordinarily in excess of 1 fiscal 12 months. $begingroup$ For a choice with cost $C$, the P$&$L, with regard to alterations of the fundamental asset price tag $S$ and volatility $sigma$, https://www.youtube.com/watch?v=qMmsQ4kKgY4