Typically the large breed puppy foods are lower in calcium and protein to help insure slow steady growth. The numbers on the TOTW formulas don't look that off to me. ..... but that is why. There are some nice sticky notes you should read in the feeding the puppy section about selecting puppy food.
NAPWDA Certified Cadaver Dog
Waiting at the Bridge (italics
=GSDs) (hemangiosarcoma=blue):Grim , Cyra, Toby
, Rainbow, Linus, Oscar
, Arlo & Waggles