To understand this problem, we need to look at the cost and price of egg filling cakes, and know what the cost and price are respectively, so we can naturally know what the profit is. The main ingredients of this snack are flour and eggs, and then there will be some side dishes, such as some small green leaves, small pickles and Chili sauce. Among them, flour, as a staple food, is definitely much cheaper than eggs. As for the price of eggs, generally speaking, there are about seven eggs per catty, and the price is about four yuan, which is lower than the retail price of eggs in the market. Because general catering businesses buy in bulk, the price is cheaper than the retail price.

Such an egg is about 60 cents. Generally, there are two eggs in an omelet, so it's one and a half in total, and then counting the prices of various side dishes and oil and salt ingredients, the cost of an omelet is generally about two to three yuan. The price of an omelet is about four or five yuan, so the profit of an omelet is about two yuan. For example, some egg cakes may contain more things, such as ham sausage and tenderloin, which may be more expensive, but with more things, the price is more expensive, so the total profit is still flat. For example, you usually do an egg-filled cake entrepreneurial project in a crowded place, and you can sell two or three hundred copies a day by setting up a stall casually. According to the profit of two yuan, you can earn four to six hundred yuan a day.