Thy Will Be Done Manufacturing Enterprise has been in business several years manufacturing aircraft seats for Airbus, a company that builds aircrans. The Company has decided to review its stock control policy due changes in the industry. Currently the company uses an order quantify of 50 items. The sost of placing un order is GHe 100 per order. The cost of holding one item of stock for one year is GHC10. Annual demand for Airbus seats is 200 units. Requircd: (a) Calculate the annual inventory costs with the current ordering policy. (4marks) (b) Calculate the economic order quantity (4marks) (c) Determine how many orders would be placed using the existing ordering quantity (2marks) (d) What will be the cost savings for the company by implementing for changing from the existing ordering quantity to the new economic order quantity (4marks) e) Explain two (2) benefits and two (2) challenges which managers of a manufacturing company such as Thy Will Be Done Enterprise would derive or face from setting up a costing system. (6marks)