Polk Company manufactures basketballs. Materials are added at the beginning of the production process and conversion costs are incurred uniformly. Production and cost data for the month of July 2020 are as follows. Production DataBasketballs Units Percent Complete Work in process units, July 1 470 60 % Units started into production 1,140 Work in process units, July 31 600 40 % Cost DataBasketballs Work in process, July 1 Materials $730 Conversion costs 560 $1,290 Direct materials 2,168 Direct labor 400 Manufacturing overhead 1,290