Market Reports / by Ortenzia Borre - 9 months ago GrainCorp (ASX:GNC) plummets almost 60%: Aus shares close 4.2% higher 24 Mar 2020 - It's been a relatively positive day of trade for the Australian share market, closing 4.2 per cent up. Santos' (ASX:STO) South African Energy Coal and Aluminium opera…