Hard cash Approach The hard cash approach, which happens to be also referred to as the dollars accounting technique, is simply utilized when dollars goes in and out in the business enterprise. This can be a quite simple process that only accounts for money gained or paid. “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... https://www.youtube.com/watch?v=qMmsQ4kKgY4