Cost of living in Cartagena (Colombia) is 7% 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 359 prices entered by 31 different people.
For example, you would need at least 2,026KM (COL$3,672,737) in Cartagena to maintain the same standard of living that you can have with 1,900KM in Zenica.