The answer to this question needs to consider a number of factors: 1. Whether there are already other catering outlets selling the same type of food on the campus of Weifang University, if the market is saturated, it will be difficult for a new window to gain more market share.2. How much does it cost to make the loin cakes, including raw material purchasing costs, production costs, water and electricity, etc., which needs to be calculated to take into account the cost of revenue.3. How about the purchasing power, whether they are willing to pay a higher price for this kind of food and whether the price is competitive. In summary, the success or failure to open a window to sell tenderloin meat pie to make money, but also need to have a more in-depth understanding of the local market and consumers and market research.