Cost of living in Hong Kong is 35% 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 2,120 prices entered by 386 different people.
For example, you would need at least 4,359,467 Franc (HK$64,306) in Hong Kong to maintain the same standard of living that you can have with 3,230,000 Franc in Abidjan.