Cost of living in Joinville (Brazil) is 38% more expensive than in Odessa (Ukraine)
This comparison has some inconsistent or sparse data. It already provides a reliable comparison but it is not bullet-proof. It is based on 542 prices entered by 53 different people.
For example, you would need at least 55,053₴ (R$ 7,797) in Joinville to maintain the same standard of living that you can have with 40,000₴ in Odessa.