how much formula is normal?

Joyce
Advice needed!!!    🤔 I have been struggling with how much formula to feed my little one. She is three weeks old and eating 2-3 oz every 2 hrs even through the night which is at least 24-30 oz a day. She is 7 lbs 4oz now (6lb 2 oz at birth) but it seems like a lot!! I read only to give 2.5 oz per pound of baby per day which would be just about 18 oz per day. I read that formula babies tend to be overweight and I don't want to start her down that path of overfeeding.. idk how much are your babies eating?          And I thought formula babies generally sleep more throughout the night but she is still up every 2 hrs...