Depreciation = value at first from the 12 months (opening equilibrium) + purchases while in the calendar year − value at the end of the calendar year (closing balance) The system for each gain metric to the earnings and decline assertion (P&L) is stated in the subsequent listing: 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； Buyers https://omaru741hmr1.blogrelation.com/profile