Cost of living in Newcastle (Australia) is 72% 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 92 prices entered by 7 different people.
For example, you would need at least 元14,953 (AU$2,974) in Newcastle to maintain the same standard of living that you can have with 元8,700 in Zhenjiang.