A company uses 200 steel sheets a month. The sheets are purchased for $3 each. Annual holding cost is estimated to be 25 percent of purchased cost, and ordering cost is $25 per order. The manager has been using an order quantity of 300 flower pots. a. Calculate the economic order quantity. b. Calculate the total cost of annual inventory control based on economic order quantity. c. What additional annual inventory control cost is the shop incurring by using the current order quantity? Company XYZ's cost of producing a product in regular time is $40, overtime is $50, and subcontracting it to another company costs $60. The average balance Inventory cost is $10. Compute the total cost of the aggregate plan. Month Jan Feb Mar Apr Forecast Output 300 320 320 340 Regular 300 300 300 300 Overtime 20 20 10 20 Subcontract 0 0 10 10 0 10C Mostly sunny