Cost of living in Bologna (Italy) is 10% 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 451 prices entered by 59 different people.
For example, to keep the same standard of living that would require 3,430,000 Franc in Abidjan you would need to make just about 3,096,270 Franc (€4,724) in Bologna.