AccuBlade Castings Inc. casts blades for turbine engines. Within the Casting Department, alloy is first melted in a crucible, then poured into molds to produce the castings. On May 1, there were 340 pounds of alloy in process, which were 60% complete as to conversion. The Work in Process balance for these 340 pounds was $53,448, determined as follows: Direct materials (340 x $150) $51,000 Conversion (340 x 60% x $12) 2,448 $53,448 During May, the Casting Department was charged $379,200 for 2,400 pounds of alloy and $22,906 for direct labor. Factory overhead is applied to the department at a rate of 150% of direct labor. The department transferred out 2.540 pounds of finished castings to the Machining Department. The May 31 inventory in process was 25% complete as to conversion. Required: a. 1. On May 1, prepare the journal entry for the Casting Department for the materials charged to production.* 2. On May 31, prepare the journal entry for the Casting Department for the conversion costs charged to production.* 3. On May 31, prepare the journal entry for the Casting Department for the completed production transferred to the Machining Department* Refer to the Chart of Accounts for exact wording of account titles. Round all amounts to the nearest whole dollar. b. Determine the Work in Process-Casting Department May 31 balance. c. Compute and evaluate the change in the costs per equivalent unit for direct materials and conversion from the previous month (April).