What a ¥499,997 salary in Shanghai is worth in Port Louis?

What this figure means

PPP re-prices pay for local living costs. Shanghai sets the benchmark price level; every other card's gross is derived from the shared gross benchmark and re-priced at Shanghai'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. Shanghai's average prices are 40% higher than Port Louis's (indexed price level). Both cards start from the same nominal gross of Rs 3,568,699. At Shanghai's prices that gross is worth Rs 4,978,992 — 40% more than Shanghai's own Rs 3,568,699, reflecting Shanghai's higher prices (¥697,588 at today's rate).