Cost of living in Białystok (Poland) is 10% more expensive than in Zrenjanin (Serbia)
This comparison has some inconsistent or sparse data. It already provides a reliable comparison but it is not bullet-proof. It is based on 106 prices entered by less than 5 different people.
For example, you would need at least 87,245 Дин. (3,202 zł) in Białystok to maintain the same standard of living that you can have with 79,000 Дин. in Zrenjanin.