Who knows the span calculation formula?

Cleaning includes daily cleaning and land reclamation cleaning. Daily cleaning is charged by the hour, and land reclamation cleaning is charged by the construction area. So the details should be decided according to your needs. The price of daily cleaning is related to aunt's level. The higher the level, the higher the price. Land reclamation cleaning is generally the first cleaning after decoration and hard installation, and the cleaning of new homes. The price of land reclamation and cleaning is also divided into furniture and villas, so this price depends on your own situation. However, I suggest that when you are looking for domestic service, you should also look at whether the company is formal, whether the company has a business license, and whether the domestic workers have certificates and insurance. E housekeeping has a good reputation, and it is recommended to compare more.