How much TOTW do you feed per weight?

Ok I am just wondering because I finnally got a job so was able to get my dogs TOTW again, last time Goren was about 6 months so I really am curious, He eats around 2 cups of Diamond Natural large breed adult a day. He is a lazy dog unless its not hot or I get him walking/playing. He is right around 70lbs and around 19 months old

Lola gets about 2 cups of Diamond Natural Large Breed Puppy (it was cheaper than regular diamond natural puppy, and it had more in the bag) she is about 15- 20lbs and just over 3 months old.

I am thinking Goren will be eating maybe a cup and a half after the transition but I do want to know how much people feed for a dog that does not walk every day (if its almost 90 at midnight he does not get a walk and he does not seem to mind lol)

O yea and its High Prairie, I was going to get the Wetlands one but they were out, I am waiting until one of his containers is empty so I can just dump it in there.