How to set the membership index of all-season hotels?

Time spent in the hotel and income contributed to the hotel. The membership card of all seasons hotel is upgraded and downgraded according to the number of guests staying in the hotel room and the income they contributed to the hotel. All-season hotel members are the highest platinum members, then the gold members, then the silver members, and the lowest star members. All Seasons Hotel is a mid-range hotel brand owned by Zhu Hua Group. It has covered 3 1 provincial administrative regions in China, and by April of 20021year, nearly 1200 have been opened.