I've known 2 coop situations.
1. Big coop, like a dorm; less relevant. Chore charts, periodic meeting, essentially people rented a room and did some of the cleaning / breakfast meeting. Unclear on how capitalization worked, but the operation was in stable state when I knew it.
2. One house long lasting coop of individuals. One lady had a kid. To join or exit the coop, I think the individual paid a capital amount, which was a fraction of current value because the group did not mark up shares despite inflation. The group voted by consensus on new members. Monthly contribution toward taxes/maintenence was like modest rent. Decisions were by periodic consensus, normally. The main daily routine was that individuals took turns cooking a breakfast and dinner that could be shared by all, though attendence/sharing was intermittent. Maybe half of the 8 coop members might attend a given meal. Maintenance was spotty and hippie-ish, good enough to get by but not to keep up with the Joneses. Overall veggie vibe, definitely at 70s holdover. Looked unchanged 3-4 years ago, astonishingly.
PS. Each of these groups had the principle of paying an equal share, not adjusting prices because of earnings/income. The big coop did have a bit of discount for low income, which I think was extended judiciously in the event of the overall coop having a surplus.