How many units are in process at May 31? Work in process inventory eTextbook and Media What is the unit materials cost for May? (Round answer to 2 decimal places, e.g. 12.55.) What is the unit materials cost for May? (Round answer to 2 decimal places, e.g. 12.55.) Unit materials cost eTextbook and Media (c) What is the unit conversion cost for May? (Round answer to 2 decimal places, e.g. 12.55.) The ledger of Sheridan Company has the following work in process inwentory account: Production reconds show that there were 420 units in the beginning inventory, 35% complete, 1.160 units started into production and 1,160 units completed and transferred out. The beginning work in process inventory had materials costs of $1,860 and corwersion costs of $1,680. The units in ending inventory were 40 s. complete as to comversion costs. Materials are entered at the beginning of the painting process, and conversion costs are incurred uniformly throughout the process