BF 3 month old bottle amount question

[LM519]

I am having trouble determining how much EBM my dd needs while I am away from her for a few days. I've frozen plenty of milk for her, but I'm having trouble telling how full to fill her bottles. Yesterday I did a yield all day, and what I produce varies GREATLY. 8 oz in the morning down to 3 at dinner. (We've been Supplementing a small amount of formula at dinner bottle.

How many ounces on average should she be eating per bottle at this point? We are on 3.5 hour EASY with 1 NW to eat.

Thank you for your help!

[Fiver]

This might help http://kellymom.com/bf/pumpingmoms/pumping/milkcalc/

As for the yield, please take that with a pinch of salt.  Pumping output really has little bearing on how much LO is getting directly from the breast - they are MUCH more efficient than any pump.

Also, it's totally normal to have a more plentiful supply in the morning than the later afternoon/evening, so don't panic.  Evening/night milk is generally more fatty (as I understand it) and contains sleep inducing elements

[LM519]

Thank you! This does help.