Cost of living in Manaus (Brazil) is 6% more expensive than in Zhenjiang (China)
This comparison is lacking data. It provides a decent comparison, but it is not yet reliable. It is based on 346 prices entered by 31 different people.
For example, you would need at least 9,572元 (R$ 5,153) in Manaus to maintain the same standard of living that you can have with 9,000元 in Zhenjiang.