Hong Kong’s retail sales fell by double digits in September as coronavirus restrictions slammed the brakes on spending and tourism slowed to a trickle, but the decline was smaller than in August as infections slowed.. In volume terms, retail sales slumped 13.4%, unchanged from the previous month. “The business environment of the retail trade will remain challenging in the near term, as inbound tourism is unlikely to see a swift rebound and the labour market is still under pressure,” a government spokesman said.