EXERCISE 4-3 Cost Per Equivalent Unit-Weighted-Average Method [LO3] Billinstaff Industries uses the weighted-average method in its process costing system. Data for the Assembly Department for May appear below: Work in process, May 1 Cost added during May Equivalent units of production. Required: Materials Labor Overhead $14,550 $88,350 $23,620 $118,100 $14,330 $71,650 1,200 1,100 1,100 1. Compute the cost per equivalent unit for materials, for labor, and for overhead. 2. Compute the total cost per equivalent whole unit.