They are now seven weeks old and I weighed the smallest (1.1kg) and the largest (1.8 kg) live weight so far the total cost is:
7 chickens @ $3 ea = $21
3 bags of feed 1 @ $18 and 2 @ $19 = $56
total = $77
final total = $11 per chicken
One bag of feed is yet to be opened so they still have time to grow, so far I have been really happy with this project they are super easy to look after and are growing really well. I move them daily onto fresh grass and let them out to free range in the afternoons.