I am in London, England. (so prices are in GPB, and weights are in g or kg, best way to find weight and currency conversion rates is by google but at present £1 GBP = just under $2 USD, ie double my price to get US conversion)
I order most of my food via zooplus, meaning that most is imported from mainland Europe but with no overheads associatated with running a shop/store:
Dry (I only buy 1 dry food so don't have the prices for others)
Royal Canin Fit 32 - £42 for 10kg
Bozita tetrapak wet food - Produced in Sweden, £0.17 to £0.20 per 100g (good quality, processed but very high meat content, no hormones or additives besides vitamins/minerals, this is my personal 'great value for money, good for your cat' food in Europe)
Almo Nature pouches - produced in Italy, £0.93 per 100g (premium food)
Applaws cans - Produced in England, £0.77 to £0.83 per 100g (premium food, recommended by top breeders)
Cosma Thai - Produced in Germany, £0.45 - £0.59 per 100g (I find it a bit starchy, unneccesary rice content but still a good food)
Cosma Lamb/Chicken - Produced in Germany, £0.28 per 100g for large tins, £0.71 for small (just what it says on the tin, no additives except vitamins and minerals)
Nutro wet pouches - £0.86 per 100g, a mid-range food compared to the above
Eagle Pack canned - £0.62 per 100g, imported mid-range food
Animonda Carny - £0.23 per 100g, mid-range food
Whiskas "oh so...." - £0.39 per 100g, very poor quality food, the supermarket cat food of choice.
If you are in the UK and can order online, you can't do better than Bozita for value for money. It is not quite as good quality as Applaws (which is an outstanding food) or Almo Nature, which is also superb, but Bozita is better than anything you will find on supermarket shelves, and cheaper too.