Cost of living in Suwon (South Korea) is 35% 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 80 prices entered by 7 different people.
For example, you would need at least 16,195元 (₩2,689,620) in Suwon to maintain the same standard of living that you can have with 12,000元 in Zhengzhou.