Malaysia's top 50 tycoons saw their combined fortunes drop 10 per cent from a year ago to US$80.5 billion (S$111 billion) despite the economy rebounding from the pandemic-induced slump, Forbes Asia said in a report. Property-to-maritime conglomerate Kuok group's founder Robert Kuok who turns 99 in October retained his long-standing top spot though his fortune declined to US$11.