Cost of living in Melbourne (Australia) is 148% more expensive than in Zapopan (Mexico)
This comparison has some inconsistent or sparse data. It already provides a reliable comparison but it is not bullet-proof. It is based on 3,308 prices entered by 655 different people.
For example, you would need at least Mex$ 138,993 (AU$9,439) in Melbourne to maintain the same standard of living that you can have with Mex$ 56,000 in Zapopan.