On that day, 30 people tied, 30* 10*40= 12000, which is the profit of that day. At this time, it is 8w deposit, 92w mortgage risk and 1.2w profit, which is equivalent to 93.2w mortgage.
If the remaining 20 hands are held on the same day, there will be a floating profit of 20* 10*50= 10000.
Therefore, the closing profit of the day is 1.2w, the position profit of the day is 1w, and the total equity of the day is102.2w..