Weaning off formula

Ra

How do you transition from formula to cows milk? I’ve read replacing 1-2oz of formula with milk? And once you’ve transitioned off formula do they still need 24oz of milk instead? Would I still give her a bottle or sippy cup of milk in morning, midday, and at night for bed? She currently has 3 8oz bottles a day.

My daughter is turning 1 in 10 days days and I’m getting nervous doing this.