The most common amount for a personal loan in South African is R16 600 and the most common repayment period is 12 months. According to compareloans.co.za the average monthly repayment (including fees) for a R17 000 loan from a South African Bank is R1 700, resulting in a total payback of R20 400. This is 120% of the original loan value paid in a year.
(https://bit.ly/3jrTRcE, XDS Credit Data)