Why are the things in WOWO supermarket more expensive than those in the canteen outside? How can the price bureau ignore it?

Hello! For Class One, everything in the supermarket is more expensive than that outside. It can also be said that if every dealer wants to sell his products to the supermarket, he will charge a bar code fee for each product, and the fee is also very high. On the other hand, opening a supermarket has to pay taxes at once, and the tax is also very high. If he sells it at a low price, he can't even recover the money from the tax. What supermarket can he open? In addition, what you have to throw away is that things bought in supermarkets are generally safer, because their hygiene is better than that of the canteens outside. Speaking of the canteen outside, he only pays a little rent, and if he pays taxes, he won't get much. What he sold cheaply was all his pure diamond money. His expenses are very small, it is also beneficial to sell a little cheaper and sell more things!