Hi
Another raw feeder here - for over 20yrs now.
Some dogs need more than recommended percentages- and you might want to include some other brands to vary the nutritional profile. Go by body condition - if you think he needs more then give more.
My current 7 month old has been on nearer 8% at times, but I'm losing track of percentages now as I don't know her weight. She had a major growth spurt and was all legs, so I increased her intake to 1.2k daily, she's now looking more mature, has filled out nicely so I've gone down to 1k and will see how she does on that.
Un neutered dogs need more than neutered, which is another factor.
I have a spayed golden retriever who is 7 now she now doesn't need much, (600g ish) loses and puts on weight with alarming speed, so I have to watch her weight carefully, she was very skinny as a youngster - but honestly far better to be on the skinny side in terms of joint development. People often think she's only about 3 because she's so slim.
She does, however, have some food intolerances, and her 💩 was quite loose as a youngster, so you might want to consider that if his are loose at all?
I use naked dog, prodogs and Paleoridge mainly. I like the raw whole fish that paleoridge do - mackerel- mine eat them frozen like ice lollies (won't touch them thawed 🤷🏼♀️) so that's another option, add some fatty fish to his diet.