Here's the bottom line:
If you only count the costs of buying a chick and feeding it to finish weight and processing it yourself, you probably spent about $6 a bird for a cornish rock hybrid that you raise to seven weeks of age.
If you count the amortized costs of housing the bird, providing...
I don't think you're ever going to be able to make the business case for raising chickens if you compare homegrown organic chickens to store-bought industrial raised broilers. It is impossible for you to compete with the massive economies of scale of a Tyson or Perdue on a pure financial basis...