I'm feeding my nine week old dog "Roley" Supercoat dried puppy food. On the bag it says to feed a 2-3 month old puppy whose adult weight should be around 25 - 50kg between 190g -320g. I know I must sound stupid but how do I know when to up the amount to give him? When we first got him he was on 190g per day and he has put on a kilo in weight so I thought I would put his food up to 240g. Does this sound like enough? I've not had a puppy for 20 years so feel totally out of the loop.