The amount can vary a LOT between babies, so your best bet is to track her formula intake and go from there. At her age, she should be getting 26-32 oz of formula per day, since that should still be her main source of nutrition for the time being. You might consider cutting back slightly on the amount of solids you offer until she's closer to that range. You might cut back a bit at the 4PM meal and see if she'll take more formula then, and you can even start offering it in a sippy at mealtime. And if you mix any into her cereal, that counts too. It looks like you're doing a great job keeping her diet balanced and keeping track of how much she eats! Also, if you check the EASY forum, you should be able to find plenty of sample routines for other 8 month olds. HTH!