The chart above and the back of the dog food bag have suggested measurements to start with and adjust as your puppy grows.
Poodle puppies burn a lot of energy playing and must replenish it quickly. I recommend not limiting the puppy's access to food at all until 12 weeks. I free-feed my puppies. This means leaving the dry food out during the day for your puppy to graze on when hungry. At 12 weeks, they can be switched over to 3 meals a day and two meals at six months old. If you prefer to keep your puppy on a strict schedule until 12 weeks old they must be fed at least four times a day. Right after going home, the puppy may experience uncertainty about the new environment and not eat. This is not ideal and sometimes even dangerous for a small puppy. In tiny puppies, prolonged fasting can easily lead to hypoglycemia. In this case, soak the puppy kibble with warm water and let it sit for 20 minutes to cool off. The soaked kibble releases a stronger smell and entices a hungry puppy to try and eat it. Leftovers should be refrigerated or thrown out after 40 minutes. Poodles are athletic and very good at self-regulating when allowed to do so. Poodle weight varies a lot among different lines. It is best to rely on body scoring than weight to determine if your dog needs more or less.