Cost of living in Newcastle (Australia) is 79% 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 99 prices entered by 7 different people.
For example, you would need at least 元15,202 (AU$2,894) in Newcastle to maintain the same standard of living that you can have with 元8,500 in Zhenjiang.