Is Ningxia centralized isolation at its own expense or free?

dear ~, how are you? It is not necessary to isolate low-risk areas from Guyuan, Ningxia, but it is necessary for middle-high risk areas to enter Guyuan, Ningxia, and isolation is required at their own expense, which requires centralized isolation for 7 days. The daily isolation cost is about from 2 yuan to 4 yuan, and the specific isolation cost needs to be allocated by the local government. The isolation cost of living in different places is different, and the place to live is randomly allocated.