The spreadsheet in isolation view does seem odd to farming types.

We have chickens, my father's still looking after them and he's had chooks since his birth in 1935 .. along with at least 10 fruit trees on any property we've had, potatoes, tomatoes, onions, garlic, herbs, pumpkins, and all the usual stuff that you can sow and that grows pretty well on its own (we've all had other jobs .. but this all stems from either growing acres of grain in some wings of the family or raising cattle in remote parts of Australia far from regular shops).

Point being, chickens do well on picking through big piles of rotting down compost from everything else so feed costs are low, return on having chicken shit turned into soil that can be used for the next garden bed is high, value of having bugs kept in check is saving on sprays, etc.

By all means keep a spreadsheet, I'm fond of them also, but having had chooks for decades we see them more as an integrated component of a bigger picture.

If you think you're spending too much on the eggs then you're not perfectly happy. I grew up with chickens and my family also grew up with them. I'm just saying, something is really wrong with the way you're doing it if you think it's not worth the money. There are ways to do it economically. What do you suppose the big farms feed the chickens to make it economical to not only grow the chickens but also package and ship the eggs profitably for all involved, cheaper than you can do it without packaging and shipping and paying middle men?