my baby for 60 days weight is 4.5 kgs last last 12 days it increased 400gms and last 13 days it increased 200 gms last week I have given more breastfeed than formula. please claeify

A. weight increase around 500-700 g per month and double the birth weight at 4-6 months and three times the birth weight at completing one year exclusively breast feeding recommend for six months if mother milk is not sufficient then you feed formula milk