Cost of living in Minatitlan (Mexico) is 14% cheaper than in Zhenjiang (China)
This comparison is lacking data. It provides a decent comparison, but it is not yet reliable. It is based on less than 10 prices entered by less than 5 different people.
For example, to keep the same standard of living that would require 元9,300 in Zhenjiang you would need to make just about 元7,969 (Mex$ 21,873) in Minatitlan.