Cost of living in Opole (Poland) is 43% 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 165 prices entered by 11 different people.
For example, to keep the same standard of living that would require 3,670,000 Franc in Abidjan you would need to make just about 2,095,747 Franc (13,796 zł) in Opole.