租金 is the critical factor
Use others example on (33/hr) 7,260 /mo, assuming I am paying 6,000 /mo now, so for a restaurant with 5 "low cost" staff they needs to pay extra let say 1,500 HKD (including MPF) per staffs so extra cost of 7,500 /mo ?
And you know how much rent they may be paying 50,000 and up !