Feedings how much and how many hours between?

I’m going to start working 4 days a week, which means I will not be breastfeeding during work hours. My baby been breastfed all day everyday, but does get a night time bottle and is very good at taking bottles when others feed him. I pump every morning sense he was born 7 months ago so I have a big stash! My bags go from anywhere to 4-6oz, some are 8oz but not many. I’m wondering how many bags do you guys give your day cares or providers? How many ounces does your little one take? Also how many hours till a next bottle?