What you see on the surface is a math problem, 10÷3=3.333, 1 1÷4=2.75. It is cheaper to buy four.

Taking advantage of people's consumption psychology, maybe I just want to buy two, 10 yuan bought three, and then I calculated that 1 1 yuan four is cheaper, and maybe I just bought four for the sake of cheapness. No matter what kind of promotion, the seller will not lose money. Buy more or a lot. If you buy one, you will get a price. If you buy more, you get less. In short, businesses will not lose money.

Extended data:

Promotion method

1, anti-season promotion method

Commodities often sell well in the peak season of consumption and are often unsalable in the off-season. However, some enterprises do the opposite. In summer, our winter clothes, such as fur coats, heating appliances, leather boots, down jackets, etc., which were originally unsalable in the market, are very popular in some cities. This is what people often call "anti-season promotion". Businessmen with calculation often provide off-season goods, and there are also many buyers among consumers, the main purpose of which is to obtain the seasonal price difference.

2. One-time promotion method

The store has grasped the customer's psychology that "things are rare" and made a strong impression on customers. Customers think that the goods sold in our shop are the latest, now or never, and we must not hesitate. Therefore, as long as there is anything on the market in this store, there will be a scene of snapping up. This method is similar to the "limited sales method" adopted by some shops in China.

3. Deferred price reduction promotion method

This requires merchants to select some goods as special offers in stages and batches, and make large posters to stick inside and outside the store, or print small leaflets to distribute to customers. These special offers are limited to three or four kinds in each issue to attract customers with small profits but quick turnover, and the products in each issue are different to cater to customers' curiosity.