I think this would be the norm in Hong Kong for the rest of 2020. Doubtful an end is in sight. F&B, Tourism and retail store will bear the brunt.
Businesses that are make low gross margin will probably not make it unless they have a healthy cash flow.
Business is about momentum. If you loose momentum, it take time to regain. After a stop gap, customers will re-think whether the service they are using or going to use is a WANT OR NEED.