The cheaper way would be-
1) Basmati Rice 5lbs (approx. $5.00)
2) 2 whole chickens (approx. $ 7.00)
3) Butter or cooking oil (approx. $1.00)
4) Shan Biryani Masala mix (3 packets 99c each, approx. $3.00)( contains everything including salt)
5) Gas and/or electricity +water use ($x)
6) Human resource ($y)
7) carry out boxes, disposible forks and papers ($z)
Total= $16 + ($x+$y+$z)
if it fills 20 carry out boxes-
Total Income = 20X 2 = $40.00
Net Profit = $24.00 - ($x+$y+$z+applicable tax)
(assuming 0% depreciation on gas/electric stove and oven, used woks and oven pans, sink tap etc.)