The Polishing Department of Sheridan Company has the following production and manufacturing cost data for September. Materials are entered at the beginning of the process. Production: Beginning inventory 1,600 units that are 100% complete as to materials and 30% complete as to conversion costs; units started during the period are 45,600; ending inventory of 5,400 units 10% complete as to conversion costs. Manufacturing costs: Beginning inventory costs, comprised of $20,500 of materials and $61,330 of conversion costs; materials costs added in Polishing during the month, $227,300; labor and overhead applied in Polishing during the month, $125,800 and $257,440, respectively. (a) Your answer is partially correct. Compute the equivalent units of production for materials and conversion costs for the month of September. Materials Conversion Costs The equivalent units of production 47200