How much does your 6 week old eat?

How much per sitting do you feed your 6 week old? I know every baby is different but on average should be fairly close in range. I’ve been breastfeeding and couldn’t pump much nor did I care for it. I just feed on demand. I’ve tried a bottle a few times. And I’m at 3oz of formula when I give formula now which is only a handful of times I might add and he still seems hungry. Maybe why he wants to nurse 24/7. But to get a general idea I’m wondering what others do for this age