You know, I've never figured that out (the diet wasn't done as a cost saving measure, but as per the breeder's wishes/terms if I wanted her dogs).
However:
- 200lbs of dog-quality meat last me almost a month or so (given there are days the two oafs don't feel like eating, or I may give them a little less if I think they're getting fat), and costs me $100;
- veggies I "cheat" and buy in the frozen section of any supermarket (2 big bags run me about $8 and last almost 2 months based on the portions I mix in);
- A bin of kelp in the pet store is about $20, and it's used in minimal amounts (lasts a half year or so);
- Fish oils, again, about $10, and again, last about a half year (maybe a little less);
Given the above, and on some seriously rough math...probably costs me about $5 a day or so (give or take a few bucks) for both dogs (based on one month).
If you want to know what I spend on my dogs a day ... it's about $10 a day for 2 dogs. 100lbs Doberman, 75lbs pitbull/shepherd mix
I get crates of human grade meat (T -bone steaks, angus ribeye, pork ribs, whole chickens, salmon, etc.) plus some additional things most of us just walk by (chicken giblets, turkey necks, livers etc.)
I get all fresh veggies (pumpkin, turnip, berries, spinach, carrots etc.)
Plain Yogurt
Eggs
Brown Rice
All that sums up what my dogs eat.