I spend about $100 a week not including biscuits or treats. Scary i know. My dogs get fed once a day and have biscuits always on supply if they want to eat during the day.
They are both large dogs, Kodi is 50kg and my 13 month old puppy Zeus is 70kg's.
They are however both spoilt rotten and get a pretty good variety of food.
As i work for woolies as a butcher i can sometimes pick up meat when it is marked down so this helps a bit.
I mostly shop at a local butcher as he's a lot cheaper.
If you think dogs can't count, try putting three dog biscuits in your pocket and then giving Fido only two of them. ~Phil Pastoret