A company uses the weighted average method for inventory costing. At the start of a period the production department had 54, 000 units in beginning Work in Process inventory which were 33% complete: the department completed and transferred 168, 000 units. At the end of the period, 15, 000 units were in the ending Work in Process inventory and are 68% complete. The production department had conversion costs in the beginning work in process Inventory of $90, 000 and total conversion costs added during the period are $726, 625. Compute the conversion cost per equivalent unit. $4.43. $4.22. $4.58. $4.64. $4.79