Cost of living in Dortmund (Germany) is 120% more expensive than in Adapazarı (Turkey)
This comparison is lacking data. It provides a decent comparison, but it is not yet reliable. It is based on 149 prices entered by 15 different people.
For example, you would need at least 6,167TL (€1,278) in Dortmund to maintain the same standard of living that you can have with 2,800TL in Adapazarı.