Cost of living in Port Moresby (Papua New Guinea) is 43% 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 502 prices entered by 31 different people.
For example, you would need at least Mex$ 38,484 (6,707 Kina) in Port Moresby to maintain the same standard of living that you can have with Mex$ 27,000 in Aguascalientes.