Cost of living in Venice (Italy) is 44% 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 91 prices entered by 11 different people.
For example, you would need at least 13,633元 (€1,768) in Venice to maintain the same standard of living that you can have with 9,500元 in Zhenjiang.