The most important detail is what you didn't say. What breed are they? Are they out of top, true to breed stock?
Top breeders of show lines can demand $25 a chick or more sometimes, if they have a well known strain and the stock is well respected. Just hatching chicks from so-so hatchery stock rarely nets that kind of money. Your local market will determine what you can charge. Don't be surprised if $4 or $5 would be big money.
Which leads to the reality that making money off chickens difficult and most would say virtually impossible. Breaking even is considered a moral victory. It's a hobby. Do it because you love it.
