If you start with all pullets it could work out. If you raise straight run, then it will skew your results. Males are a lost cause if you have to pay to feed them.I just wonder if it would be worthwhile......
set up a pen, for ten hatched chicks.......raise to laying age......monitor their feed, ie only feed from their own bin, and see what they sell for, to determine price per bird......like walnut said, excluding buildings, taxes, etc