Feed on demand, milk intake guidelines are just ... guidelines! There's no real formula or equation as to how to calculate how much or how often your baby will drink because they're not robots :x They know when to stop when they're full so just keep it at that, as long as she has enough wet diapers and doesn't seem hungry all the time then you're good!
Just take the que from your baby. If your baby is hungry, she will cry for milk. So not to worry too much. Just ensure she is healthy and meeting the milestones!
Jena Lim Xiang Ying