I have 20 hens and 2 roosters (living in a country village where neighbours like the authentic rural vibes) I buy 50kg of feed every 6 weeks for (equivalent)$23. Outside of winter we average 7-12 eggs a day and in winter about 2-4 a day. What we sell covers the cost of feed (except for winter)The birds free range all day and have large compost heaps and worm farms to gorge themselves on. Before moving to the country we had 4 hens in a city garden which worked out to a greater cost per egg due to the lesser free-ranging opportunities but still cheaper than a caged egg from a supermarket. Once you have your own hens you'll never go back to factory eggs!