The ledger of American Company has the following work in process account. Work in Process-Painting 5/1 5/31 Balance 3,690 5/31 Transferred out ? Materials 6,820 5/31 Labor 5,262 5/31 Overhead 1,280 5/31 Balance ? Production records show that there were 500 units in the beginning inventory, 30% complete, 1,800 units started, and 1,400 units transferred out. The beginning work in process had materials cost of $2,840 and conversion costs of $850. The units in ending inventory were 40% complete. Materials are entered at the beginning of the painting process.