Cost of living in Enschede (Netherlands) is 113% more expensive than in Łódź (Poland)
This comparison is lacking data. It provides a decent comparison, but it is not yet reliable. It is based on 293 prices entered by 35 different people.
For example, you would need at least 14,072 zł (€3,273) in Enschede to maintain the same standard of living that you can have with 6,600 zł in Łódź.