According to what you said, one person can do a project with 90- 120 people in a month, and the unit price is 120- 150 yuan, calculated at 100 people per month. The unit price is calculated as per person 140 yuan, and per month 14000 yuan.
Because regular foot massage shops, especially small shops, are basically not experienced by many people, unless there are stable customers in the business hours of shops for more than 8 years, regular massage shops are not easy for big shops, let alone small shops. Thirdly, basically, a foot bath massage shop is too busy to serve one person. If one person serves, other guests will wait for a long time, resulting in a large number of guests leaving.