Expert 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 How much of the above would be considered period costs for Expert​ Manufacturing?