Cost of living in Bern (Switzerland) is 195% more expensive than in Zenica (Bosnia and Herzegovina)
This comparison has some inconsistent or sparse data. It already provides a reliable comparison but it is not bullet-proof. It is based on 340 prices entered by 33 different people.
For example, you would need at least 5,901KM (CHF 3,458) in Bern to maintain the same standard of living that you can have with 2,000KM in Zenica.