How much milk should baby be drinking FTM

My baby boy is going to be 12 weeks old on Wednesday and eats just 2 oz of formula per feed every 3-4 hours. In a day he eats around 16 oz in 24 hours. He just doesn’t seem interested in milk, like he’s never hungry. How much does your little one drink in a day and per feed?

His birth weight was 10 pounds and he’s 14 pounds now