Hiee My baby is 2 months and 8 days old and her weight is not increasing and she is not taking breastfeed and I am using formula milk what can I do for her weight gain?? She is only 4kg

A. Hello mom a full term baby are expected to almost monthly gain between the range of 300 gm to 1 kg and by the age of 4 to 6 months they almost double their birth weight. Gradually increase the quantity of the milk provided to them