Cost of living in Düsseldorf (Germany) is 230% 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 375 prices entered by 60 different people.
For example, you would need at least 19,114TL (€2,580) in Düsseldorf to maintain the same standard of living that you can have with 5,800TL in Adana.