The ledger of American Company has the following work in process account. ? Work in Process-Painting 5/1 Balance 3,790 5/31 Transferred out 5/31 Materials 5,670 5/31 Labor 4,104 5/31 Overhead 1,680 5/31 Balance ? Production records show that there were 500 units in the beginning inventory, 30% complete, 1,800 units started, and 1,500 units transferred out. The beginning work in process had materials cost of $2,840 and conversion costs of $950. The units in ending inventory were 40% complete. Materials are entered at the beginning of the painting process. Part 1 How many units are in process at May 31? Work in process, May 31 units What is the unit materials cost for May? (Round unlt cost to 2 decimal places, eg. 2.25.) The unit materials cost for May $ What is the unit conversion cost for May? (Round unit cost to 2 decimal places, eg. 2.25.) The unit conversion cost for May $ What is the total cost of units transferred out in May? The total cost of units transferred out in May $ What is the cost of the May 31 inventory? Work in process $