Cost of living in Hong Kong is 33% 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 1,979 prices entered by 378 different people.
For example, you would need at least 4,439,625 Franc (HK$64,642) in Hong Kong to maintain the same standard of living that you can have with 3,340,000 Franc in Abidjan.