Callahan Company uses the weighted-average method in its process costing system. The Packaging Department started the month with 270 units in process, started 1.430 units; and had 130 units in process at the end of the period All materials are added at the beginning of the process, and conversion costs are incirred unilonmly The cinit in process at the ond of the month are 30% complete with respect to conversion costs. During the month 1.570 units were completed and tr/ansferred out. The departinent incurred the following costs Viecthe costs. For convernlon costs, the equivalent units of production are A. 1,570 units Costs B. 1.609 units C. 1430 unis