Floating profit and loss = (settlement price of the day-opening price) * positions * contract units

The popular saying is: book profit and loss

Floating profit and loss is the difference between the position value of the contract held by the trader at the closing price of the trading day and the original position value. Floating profit and loss is a kind of unrealized profit and loss, which is usually not recognized as investment income according to the accounting attention income realization principle. However, due to the high risk of futures investment, in order to provide decision-making information for users of financial statements, it is necessary to reveal it, so as to distinguish it from the realized liquidation gains and losses of futures investment.

How much you earn depends on the difference between the buying price and the selling price. The difference between the selling price and the buying price * the position is how much you earn.