How much does it cost to build a resort hotel in Vietnam?

Consumption in northern Vietnam is similar to that in Nanning. There is a through train from Nanning to Hanoi every morning, about 140 yuan. How much does it cost? That depends on what I need to buy. For example, there are many historical sites in Hanoi, such as Confucius Temple, Restoration Sword Lake, West Lake and Ancient Street. You can go there by rickshaw and see the streets of Vietnam. It feels good, too. It's not very expensive, about 50,000 VND. Then you can go to Halong Bay by boat, enjoy the beautiful scenery there and eat seafood. It doesn't matter.