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； The formulation for every profit metric on the revenue and loss assertion (P&L) is said in the next checklist: It's important to match the earnings statement Together with the funds flow statement given that, beneath the accrual method of accounting, a company can log revenues and fees right before https://trevortzein.lotrlegendswiki.com/1425976/examine_this_report_on_pnl