It's meaningless to ask "how much" without also comparing WHAT FOOD, WHAT SIZE DOG, HOW ACTIVE and HOW OLD (and maybe even whether it's speutered or intact). There's no standard amount to feed dogs of this breed -- and foods aren't even standardized in the amount of calories per cup.
If you feed cheap food, you may have to feed A LOT because it's full of empty fillers. For example, I had a foster dog who was underweight when I got him -- he'd been fed 6 cups a day of Beneful, and it wasn't enough to maintain his weight.
We put him on Diamond Naturals/Kirkland Chicken and Rice (a more nutrient dense food), and he gained needed weight on just 3.5 c. per day.
Ultimately, a cheap filler-filled food can end up costing more than you think because you have to feed twice as much of it vs. a higher quality food!
On Fromm Four Star, my dogs need between 2.25-4 c. per day depending on the size and age of the dog (older dogs maintain on slightly less than younger dogs). The one getting 4 c. per day is a foster dog who is 88 pounds of young, happy energy. The one getting 2.25 is a neutered, senior male that's only around 57 pounds, and he sleeps a lot due to his age. Even within the Four Star line, though, we have to account for calorie differences between the various "flavors" -- the lower cal options may require us to give about slightly more than the higher cal options.
So...what are you feeding, how old is your dog, how big is your dog, how active is your dog, and what body-condition is it in? All those inputs have to be considered, and even with them, dogs simply have varying metabolic rates and thus varying food needs. Ultimately, we have to feed the dog in front of us based on its individual needs.
Last edited by Magwart; 12-06-2018 at 12:36 PM.