Cost of living in Hong Kong is 36% more expensive 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 1,808 prices entered by 365 different people.
For example, you would need at least 5,155,062 Franc (HK$71,803) in Hong Kong to maintain the same standard of living that you can have with 3,800,000 Franc in Abidjan.