Providers should adjust to a set of regulations and guidelines called frequently recognized accounting principles (GAAP) when they prepare these statements. Column nine: Influence of cancellation / Modification – PnL from trades cancelled or improved on the current day "hitparade.ch - Discographie PNL". Hung Medien. Retrieved 26 September 2016. ^ https://www.youtube.com/watch?v=qMmsQ4kKgY4