3. Kaye Manufacturing reported the following: Revenue Beginning inventory of direct materials, January 1, 2015 Purchases of direct materials Ending inventory of direct materials, December 31, 2015 Direct manufacturing labor Indirect manufacturing costs Beginning inventory of finished goods, January 1, 2015 Cost of goods manufactured Ending inventory of finished goods, December 31, 2015 Operating costs $450,000 20,000 156,000 18,000 21,000 42,000 40,000 114,000 45,000 150,000 a) What is Kaye's cost of goods sold? b) What is Kayes gross margin (or gross profit)?||