A product is processed on two sequential machines A & B. Inspection is done after machine B (Inspection station C). There is a 2% chance that a product will junked after processing. After inspection, there is an 1% chance that the unit will be junked, 6% chance of being returned to station B, and a 4% chance of being returned to machine A, 7% will be sold as a second hand product (price reduced by 30%). Machine A & B require 10 minutes of labour, inspection require 2 minutes, price of the product is $16/item & labour costs $10/hr, raw material $1/item and Overhead of $100. What is the expected profit if starting with 100 items?