Cost of living in Modesto, California (United States) is 20% more expensive than in Accra (Ghana)
This comparison is lacking data. It provides a decent comparison, but it is not yet reliable. It is based on 393 prices entered by 66 different people.
For example, you would need at least GH₵37,186 ($7,798) in Modesto, California to maintain the same standard of living that you can have with GH₵31,000 in Accra.