Annenbaum Corporation uses the weighted average method in its process casting system. This month, the beginning inventory in the first processing department consisted of 1,000 units. The costs and percentage completion of these units in beginning inventory were: Percent Cost Complete Materials costs $ 6,300 Conversion coats $ 7,400 65% 455 A total of 7,700 units were started and 6,500 units were transferred to the second processing department during the month. The following costs were incurred in the first processing department during the month: Cost Materials costa $ 126,100 Conversion costs $ 207,600 The ending inventory was 50% complete with respect to materials and 35% complete with respect to conversion costs. The cost per equivalent unit for materials for the month in the first processing department is closest to: Multiple Choice O O O O $14.64 $15.46 $17.42 $16.06