Old Victrola, Inc., produces top-quality stereos and uses process costing. The manufacture of stereos is such that direct materials, labor, and overhead are all added evenly throughout the production process. Due to the smooth production process, only one cost categorymanufacturing costsis used for equivalent unit calculations. Old Victrola had the following cost and production information available for the months of March and April:

Direct Material Costs	$ 978,460	$1,168,310
Direct Labor Costs	2,562,260	3,041,940
Manufacturing overhead applied	3,438,640	3,571,030
Total manufacuring costs	$6,979,360	$7,781,280
Units in beggining work in process	7,000	4,800
Units transferred to finished goods	18,500	23,000
Units in ending work in process	4,800	6,400

Beginning work in process was 30 percent complete in March and 60 percent complete in April. Ending work in process was 60 percent complete in March and 35 percent complete in April. a. For each of the two months, calculate the equivalent units of production. b. Based on equivalent units produced, did total manufacturing costs per unit increase or decrease between March and April? c. Did the direct materials cost per equivalent unit increase or decrease between March and April?