At present, the unit price of pancake fruit is generally around 6- 10 yuan, and the cost will not exceed 2 yuan at most, plus other expenses, it will not exceed 1 yuan at most, which means that a pancake fruit will earn at least 3 yuan money. Then calculate how many pancake fruits you can buy a day and you will know the profit of that day. In other words, you can sell 100 pieces a day, and at least earn 300 yuan.