Cost of living in Manaus (Brazil) is about the same as in Zhenjiang (China)
This comparison is lacking data. It provides a decent comparison, but it is not yet reliable. It is based on 428 prices entered by 31 different people.
For example, you would need at least 元9,520 (R$ 5,414) in Manaus to maintain the same standard of living that you can have with 元9,300 in Zhenjiang.