Cost of living in Salvador (Brazil) is 52% cheaper than in Aalborg (Denmark)
This comparison is lacking data. It provides a decent comparison, but it is not yet reliable. It is based on 673 prices entered by 81 different people.
For example, to keep the same standard of living that would require kr24,000 in Aalborg you would need to make just about kr11,495 (R$ 6,791) in Salvador.