The country with the most expensive meat I know is Switzerland. The local chains Migros and Coop mostly sell meat produced in Switzerland. Here's the chicken you can usually find on the shelves in Migros:
https://produkte.migros.ch/optigal-poulet-241001011000
> Whole chicken - $10/kg
https://produkte.migros.ch/optigal-poulet-schenkel-241110100...
> Chicken drumsticks - $15/kg
https://produkte.migros.ch/poulet-brustschnitzel
> Chicken breasts - $30/kg
https://produkte.migros.ch/bio-pouletbrust
> Chicken breasts (I suspect this is free range) - $58/kg