9) Cost sheet a) what is cost sheet? Explain the elements of cost sheet? b) Define prime cost? Why managers salary is not part of the prime cost? c) assume we have below information for product A and B Product A: prime cost= 1000$, Total overhead= 500$, selling price=1800$ Product B: prime cost= 800$, Total overhead= 900$, selling price=2100 which product is costlier? Which product makes more profit? Why?