Cost of living in Oulu (Finland) is 113% more expensive than in Zenica (Bosnia and Herzegovina)
This comparison is lacking data. It provides a decent comparison, but it is not yet reliable. It is based on 269 prices entered by 17 different people.
For example, you would need at least 4,052KM (€2,073) in Oulu to maintain the same standard of living that you can have with 1,900KM in Zenica.