1. Controlling the cost of food raw materials: Self-service hot pot can reduce waste by controlling waste, such as placing dishes at the food fetching place, implementing the measures of "multiple kinds and small quantities" and making use of the psychological function of customers.

2. Increase the attendance rate: customers of self-help hot pot can finish their meals in about an hour, so increasing the attendance rate can also effectively increase their income. According to the increase in the cost of food raw materials and the attendance rate, we know that 26 yuan self-service hot pot makes money.