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; “盈亏修正”主要指的是交易成本,通常在投机交易中占比较小。盈亏修正的计算实际上非常复杂,不同的交易所可能有不同的规则格式来规范交易行为。 This method calculates the value of a trade according to the current and also the prior working day's prices. The formula for price impact using the revaluation technique is Traders... https://lovelydirectory.com/listings679695/pnl-for-dummies