Depreciation = worth at the beginning of your 12 months (opening harmony) + buys inside the calendar year − value at the conclusion of the year (closing stability) These records offer information about a firm’s capacity to deliver revenues, regulate prices, and make gains. 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； How Income and Reduction (P&L) https://remingtonswzcd.wikikali.com/1308800/a_review_of_pnl