Units to be assigned Costs Kraus Steel Company has two departments, Casting and Rolling. In the Rolling Department, ingots from the Casting Department are rolled into steel sheet. The Rolling Department received $51,400$ tons from the Casting Department in October. During October, the Rolling Department completed $60,700$ tons, including $11,900$ tons of work in process on October $1.$ The ending work in process inventory on October $31$ was $2,600$ tons. How many tons were started and completed during October? tons