Cost of living in Mashhad (Iran) is about the same as in Almaty (Kazakhstan)
This comparison is lacking data. It provides a decent comparison, but it is not yet reliable. It is based on 678 prices entered by 63 different people.
For example, to keep the same standard of living that would require 542,000 KZT in Almaty you would need to make just about 536,644 KZT (﷼ 62,719,720) in Mashhad.