REEAAALLY frugally.
A really good chicken produces about 0.8 eggs per day and it molts for about a month a year when it will produce no eggs and here in the north it lays little to no eggs in the depth of winter.
To lay eggs the chickens need a good diet. During the six warm months of the year we don't have to feed our chickens as they get plenty from foraging plants and insects. They lay a lot of eggs then, doing about the 0.8 eggs per day. Then comes winter. If you want them to keep laying you'll need good housing, fresh water, good food, electric light, etc to keep them going. Feeding chickens in the winter is about a break even proposition so figure you're not going to make any money six months of the year.
Then there is the cost of the chickens, infra-structure, etc.
So, reasonably, no, you can't make a living off of 24 chickens. Frankly, even ten times that won't give you much. Prices vary greatly with the location so check out what your local eggs are selling for during the summer.
On the other hand, we keep hundreds of laying hens out on pasture who act as our organic pest control. They break up manure patties and kill of the insects. The surplus of eggs helps give our weaner pigs a
boost and in the fall all the extra birds go to stew. I carry very few across the winter.
Pencil it out, multiply the costs by Pi, divide the income by Pi and then you'll maybe be close.
Good luck!
Cheers
-Walter
Sugar Mountain Farm
Pastured Pigs, Sheep & Kids
in the mountains of Vermont
Read about our on-farm butcher shop
project:
http://SugarMtnFarm.com/butchershop http://SugarMtnFarm.com/csa