How much do you have in them? Cost of the bird, feed, water, processing fee (if you don't do it yourself) and if you count your time it would be a lot. Did you have to build a coop for your meat birds, or did you use an existing coop? My first attempt at meat birds had a cost of about $7.32/ea processed (I do my own processing). I wouldn't sell them for less than $10/ea at a minimum.
I asked a few months ago on a local FB page what oeople sell their butchered birds for, and is it per bird or by the pound. Some sold their 4-5 lb birds for $10 each and >5lb for $15. The majority sold by the pound and ranged from $2.00/lb to $3.50/lb. I just sold mine last week for $2.25/pound and had them all sold within 12 hours of listing them. I'm satisfied with that amount and it makes the chickens I keep for my family free meat! I do all my own butchering. My turkeys I sold for $2.50/pound, butchered and packaged. This is not my living, this is a hobby that also provides food for us. A very time-consuming, costly hobby. Haha