Cost of living in Poznan (Poland) is 4% more expensive than in Zhengzhou (China)
WARNING! This comparison is based on only a few data points. At this point it is only a guess. It is based on 330 prices entered by 52 different people.
For example, you would need at least 元10,304 (5,510 zł) in Poznan to maintain the same standard of living that you can have with 元9,900 in Zhengzhou.