What a £80,000 salary in London is worth in Johannesburg?

What this figure means

PPP re-prices pay for local living costs. London sets the benchmark price level; every other card's gross is derived from the shared gross benchmark and re-priced at London's prices, so every card's buying power is measured on the same price basis.

What this figure means

PPP re-prices pay for local living costs. London's average prices are 90% higher than Johannesburg's (indexed price level). Both cards start from the same nominal gross of R1,785,281. At London's prices that gross is worth R3,388,662 — 90% more than London's own R1,785,281, reflecting London's higher prices (£151,848 at today's rate).