20-5 p. 982 PE 20-5B Cost per equivalent unit OBJ. 2 The cost of direct materials transferred into the Rolling Department of Keystone Steel Company is $510,000. The conversion cost for the period in the Rolling Department is $81,200. The total equivalent units for direct materials and conversion are 8,500 tons and 8,120 tons, respectively. Determine the direct materials and conversion costs per equivalent unit