How many grams roughly a day should Archie be eating?

Im giving around 300 grams a day is that enough?
He six months old Saturday.

What kind of food, dry or raw

If its kibble? I feed by mines shape and fitness. I've not really been one to follow guidlines (but it will say on the food you have, the amount for his weight).

If he is fit and healthy, bright eyed, good tone then your doing fine

wainwrights puppy food and nature choice mince.

I feed raw but don't really go on weight i feed by eye and look at the condition of the dog