how much protein?

Question

Im 150cm and weigh 50 and want to get to 45kg. How many grams of protein do i need a day when cutting calories to reach my goal?

Answer 1

No No No No, Just stop eating, OK?

Answer 2

45-90g of cooked lean protein per day. I say cooked because a 8oz raw chicken breast may only weigh 3oz when cooked, for example.