How much is the elevator property fee reasonable?

The property service standard and charging standard of ordinary commodity residential quarters are divided into four grades, and the monthly prices are 0.35 yuan/m2, 0.5 yuan/m2, 0.75 yuan/m2 and 1 yuan/m2 respectively. The property management service fee can be lowered by 20% according to the change of service cost and other factors. Article 62 of the new "Regulations" promulgated this time stipulates that the government-guided price standard and floating ratio of ordinary residential property management service fees shall be adjusted in a timely manner according to the changes of the average social price index, and shall be formulated by the municipal price department in conjunction with the municipal property management administrative department and announced to the public.