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； These data present information regarding a corporation’s ability to generate revenues, handle fees, and make income. 今日持仓/昨日持仓：中国期货通常指定平今仓和平昨仓来收取不同的费用； The P&L assertion—or “Earnings Assertion”—can be a economic report that summarizes a particular company’s profits, fees, and expens... https://edgarpuzbd.daneblogger.com/33330900/5-simple-techniques-for-pnl