The prices of goods in the supermarket are on the high side. How to answer customers' questions is better?

Hello, you can explain it this way: the goods sold in supermarkets are all purchased through formal channels, and they are safe and reliable after being inspected and checked by the national regulatory authorities, so the prices are also reasonably priced according to the cost and subject to the supervision of the price department. Although it's cheap outside, we don't know much about the channels of goods, so it's better to buy with confidence.