Cost of living in Port Moresby (Papua New Guinea) is 58% more expensive than in Aguascalientes (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 607 prices entered by 39 different people.
For example, you would need at least Mex$ 40,993 (6,454 Kina) in Port Moresby to maintain the same standard of living that you can have with Mex$ 26,000 in Aguascalientes.