I wouldn't pay any attention to that, just follow babies lead
The amount increases drastically in the beginning but then usually tapers off. Just go by hunger cues. Those numbers are guidelines but there is no such thing as an "average" baby.
They are just guidelines, we had a 97th centile baby so we went off the baby weight initially rather than weeks. But after not very long we just were led by baby and how much he wanted x
The box is just a rough guide, just go off by how hungry your baby is and increase it by an oz if they’re consistently draining their bottles x