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 Method for each gain metric about the revenue and reduction statement (P&L) is stated in the subsequent list: Gain for every prevalent share — diluted [footnote two: Diluted by assumed work out of stock-centered payment awards using the treasury inventory process] How Revenue and Decline (P&L) Statements Perform Successfully Submitted (Awaiting Approval)