A person eats in a big shopping mall three times a week, and each meal costs more than 5, 60 or 100 yuan. This person's economic level is relatively medium. Take first-tier cities as an example. Under normal circumstances, a person eats in a big shopping mall three times a week and spends about 100 yuan each time, which may be above the average economic level. In second-tier cities, people generally belong to areas with low per capita income, so spending about 5 60 yuan per meal can meet the basic dietary needs, while three times a week shows that this person's pursuit of food is not strong and his economic level is relatively stable. Of course, it is necessary to comprehensively evaluate the consumption level of the city.