Cost of living in Santa Ana, California (United States) is 95% 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 202 prices entered by 18 different people.
For example, you would need at least 元16,178 ($2,459) in Santa Ana, California to maintain the same standard of living that you can have with 元8,300 in Zhenjiang.