Cost of living in Exeter (United Kingdom) is 115% more expensive than in Aguascalientes (Mexico)
This comparison is lacking data. It provides a decent comparison, but it is not yet reliable. It is based on 294 prices entered by 33 different people.
For example, you would need at least Mex$ 60,177 (£2,438) in Exeter to maintain the same standard of living that you can have with Mex$ 28,000 in Aguascalientes.