How much breast milk baby needs????

Anna

My LO is two months old. I’m exclusively pumping because she didn’t latch. While bottle feeding baby, what is the best way to know how much she needs in each feeding without wasting breastmilk? When i put less in bottle depending on what she took in last feeding, she seems to have more, and when i put more in bottle for next feeding, she doesn’t finish it & whats left in bottle gets wasted. First time mommy!