Cost of living in Muscat (Oman) is about the same as in Arezzo (Italy)
This comparison is lacking data. It provides a decent comparison, but it is not yet reliable. It is based on 352 prices entered by 63 different people.
For example, you would need at least €2,521 (﷼ 1,104) in Muscat to maintain the same standard of living that you can have with €2,500 in Arezzo.