Cost of living in Opole (Poland) is 42% cheaper than in Abidjan (Ivory Coast)
This comparison is lacking data. It provides a decent comparison, but it is not yet reliable. It is based on 166 prices entered by 12 different people.
For example, to keep the same standard of living that would require 3,220,000 Franc in Abidjan you would need to make just about 1,866,140 Franc (12,077 zł) in Opole.