Cost of living in Cagliari (Italy) is 140% more expensive than in Adana (Turkey)
This comparison is lacking data. It provides a decent comparison, but it is not yet reliable. It is based on 241 prices entered by 24 different people.
For example, you would need at least 10,327TL (€1,846) in Cagliari to maintain the same standard of living that you can have with 4,300TL in Adana.