At present, the basic living expenses of college students are 2000 yuan, especially in a big city like Shanghai. College students are the main force of consumption.

However, most universities operate in the open market, that is, each window is subcontracted as a booth, and then points are awarded according to the turnover, with an average of about 20%. The rent (management fee) charged by the school is about 10%, and the management contractor is about 10%. If the school takes away 20% first, that is to say, the original meal label of 10 yuan is changed to 8 yuan, and then 1 yuan's energy and low-value consumables expenses and 2 yuan's labor expenses are deducted, 5 yuan is left. Therefore, these five dollars are the cost of ingredients and your operating profit. If you want to earn 1 yuan or 2 yuan from this 5 yuan, what else can you see on the plate? So if you take 20% of the turnover, you probably won't make any money.