Formula and Weight Percentiles

Hi guys! I have a little boy who was born 12/27. He has been on formula since he was 1 month old. He was born right at around 6 lbs. He’s just a small little dude!Curious to see if anyone else out there has babies who are in the 10th percentile for weight? I swear my child eats as much as other kids his age, he is just a lanky little guy. Anybody else in this same scenario? All his little buddies are chunkier and it’s hard not to compare him to his peers.