The following information is available from the Oils Division of Glasgow Corporation for December. Conversion costs for this division were 75 percent complete as to beginning work-in-process inventory and 50 percent complete as to ending work-in-process inventory. Information about conversion costs follows.

	Units			Conversion Costs
WIP at December 1 (75% complete)		115,000		$	431,250
Units started and costs incurred during December		555,000			2,600,625
Units completed and transferred to next department during December		415,000			?

The Oils Division uses FIFO.

Required:

a-1. Compute the equivalent units for conversion costs.

a-2. Compute the cost per equivalent unit for conversion costs.

a-3. What was the conversion cost of work-in-process inventory in the Oils Division at December 31?

b. What were the conversion costs per equivalent unit produced last period and this period, respectively?