Cash-and-carry is cheaper than supermarket.
Cash-and-carry stores are smaller, which means that they have higher margins than the big chains. This means that you can buy more products for less money at a cash-and-carry store than you could at the supermarket.
This is because the retailers need to be able to make a profit on their products, so they must be able to get a good price for them before they can sell them in their shop. This means that they have to sell things cheaper than other stores while still making enough money to continue running their business.
Supermarket prices are usually lower than cash-and-carry prices by an average of 5%. Supermarkets have more overhead costs than cash-and-carry stores, which means they can lower prices without sacrificing profits.