Generally speaking, the profit rate of self-selected casserole mala Tang is between 50% and 100%, that is to say, if the price of a bowl of self-selected casserole mala Tang is 8 yuan, its profit ranges from 4 yuan to 8 yuan. The specific profit depends on the cost of ingredients, store rent, labor costs, water and electricity costs and other factors. Generally speaking, the ingredient cost of self-selected casserole mala Tang accounts for 30% to 50% of sales, store rent accounts for 10% to 20%, labor cost accounts for 10% to 15%, water and electricity costs account for 5% to 10%, and other miscellaneous expenses account for 5%. If you sell 100 bowls of self-help casserole mala Tang a day, the daily profit will vary from 400 yuan to 800 yuan.