Depreciation = benefit in the beginning of your yr (opening equilibrium) + purchases while in the calendar year − value at the end of the 12 months (closing equilibrium) The formula for each profit metric around the earnings and reduction assertion (P&L) is said in the subsequent record: 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； For https://martintercm.thezenweb.com/examine-this-report-on-pnl-72244215