Cost of living in Cuenca (Ecuador) is 33% cheaper than in Pretoria (South Africa)
This comparison has some inconsistent or sparse data. It already provides a reliable comparison but it is not bullet-proof. It is based on 797 prices entered by 83 different people.
For example, to keep the same standard of living that would require R 36,000 in Pretoria you would need to make just about R 24,230 ($1,691) in Cuenca.