The profit of feeding sanhuang chicken was 11.10 yuan/bird in September

In September, the gross profit of feeding sanhuang chicken was 11.10 yuan/bird, increased 2.54 yuan/bird month on month, up 5.42 yuan/kg year on year.
(1) Selling price: in September the selling price of sanhuang chicken was 21.47 yuan/kg, increased 2.80 yuan/kg month on month，and increased 6.27 yuan/kg year on year.
(2) Chick price: chick price was 6.68 yuan/bird, increased 1.47 yuan/bird month on month, up 4.44 yuan/bird year on year.