You feed your dog based on their breed, size and energy requirements. It will differ for how much exercise/work your dog does, and what their metabolism is like.
Look at your dogs regularly – if they are looking a little plump, then cut back on the amount. If they look a bit thin, then, an extra few grams in the diet for a few days may be the solution.
It’s really not hard to do, and when you get into a routine, it’s incredibly easy. See the feeding guide on our how much to feed page.