单向双向：某些产品的手续费只在开仓时收取，有些则在开仓和平仓时都收取； It is necessary to check P&L statements from unique accounting intervals, as any adjustments with time grow to be a lot more meaningful compared to the numbers themselves. "hitparade.ch - Discographie PNL". Hung Medien. Retrieved 26 September 2016. ^ a b c d e file g h i j https://cristianvnfyk.dekaronwiki.com/1446924/the_ultimate_guide_to_pnl