The yearly demand for a screen is 120,000 pc. Average cost per piece is $100; holding cost rate is 20%; changeover (setup) time for the presses is 2 hours; and cost of downtime for changing over is $300/hr. Calculate: (a) the economic batch size, and (b) the total annual inventory cost. A) None of these is correct B (a) 1,897 pc, (b) $45,806.48 (a) 2,683 pc, (b) $53,665.63 (a) 34,641 pc , (b) $90,932.6