Cost of living in Manaus (Brazil) is 10% 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 261 prices entered by 25 different people.
For example, you would need at least 9,359元 (R$ 5,182) in Manaus to maintain the same standard of living that you can have with 8,500元 in Zhenjiang.