0.55 hours. The total net work hours for the aluminum wheel value stream for the week were 15,000 . The following costs were incurred: per unit answers to the nearest dollar amount. Explain when and why this cost is more accurate than the unit cost calculated in Requirement 2. Explain why DBC is a good approach for value-stream costing. DBC should be used if the products homogeneous products. Even when the products are approximates ABC assignments