3-4 bottles, 8 oz morning and 7 or 6 oz during the day that he doesn’t always finish. He eats three meals and sometimes snack during day though.
My son eats 3 8oz bottles a day plus 3 meals and 1-2 snacks depending on how long he is at daycare.
About 10 oz every 4 hours. Waking once in the night for a 2oz and then at 5am for a 4 oz