Daily milk intake

Hi mummy you can use the formula of weigh calculation to check if bb is drinking enough... weight(g)/48 that’s the formula we received from hospital... if bb is drinking slow maybe it’s time to change the teats.. but do note that bb is like us.. sometimes we eat more sometimes we eat less not having the same amount of food daily

Weight/48 is used to calculate what ar? Using pigeon bottle and I've tried to change to M size teat, even worse. Cz she not sucking then the milk doesn't flow out at all.