AaBbCCDd AaBb AaBb( AaBbC EA EX 1 1 1 2 The following information is available for Keystone Manufacturing Company. March 1 March 31 Raw materials inventory $12,000 $10,000 Work in process inventory 2,500 4,000 Materials purchased in March $ 90,000 Direct labour in March 75,000 Manufacturing overhead in March 220,000 REQUIRED: Prepare the cost of goods manufactured schedule for the month of March