Depreciation = Benefit firstly with the 12 months (opening stability) + purchases inside the yr − value at the conclusion of the calendar year (closing harmony) The components for each profit metric over the income and loss assertion (P&L) is said in the subsequent checklist: 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 illustration, a business waiting for link from Press Release (93)