60 percent. 100 consumers enter the store every day to consume, for example, each person to buy 1 bowl of mutton soup, each bowl of mutton soup priced at 18 yuan, the daily sales is 1,800 yuan, the monthly turnover of 54,000 yuan, the annual revenue of 648,000 yuan. This is only the income of mutton soup, plus fried dishes, snacks, beverages and other sales, mutton soup house annual income of 75 to 800,000 yuan. That is to say, open a mutton soup house, annual net profit in 300000 yuan, profit margin of up to 40%, cost-effective is very high.