Except luxury goods and electronic products, most of them are cheaper than the mainland. The living standard in Hong Kong is much more expensive than that in the mainland, such as buildings, vegetable markets and supermarkets. Generally, a building averages about 70,000 to 80,000 square meters. Generally, vegetables in 7 yuan are about a catty, pork in 40 yuan is about a catty, and fruits are relatively acceptable. If you own a building, both husband and wife work and raise two children, life is still relatively comfortable.