If you only count the steaming room, it is determined by the area, materials and decoration style. Without a definite figure, the larger the area, the higher the cost. If there are some other special materials in the room, such as salt stone, agate, crystal and jade, the price will be higher. The ordinary price is about 2800 square meters, and the better one is more than 3000 square meters.
If it is a whole steaming hall, it includes lounge, bathroom, front desk and so on. And some furniture, rent, salary, etc. There will be more.