Home » News » Covid-19 has wiped out a third of South Africa’s middle class – study Covid-19 has wiped out a third of South Africa’s middle class – study Leave a Comment / News / By InterWeb SA / August 25, 2020 August 25, 2020 South Africa’s overall GDP is expected to decline by at least 5.1% and up to 7.9% in 2020 and recover slowly through 2024, the United Nations Development Programme (UNDP) has warned.