PROBLEM 3-13. Conversion Costs [LO 2,3] Hartwell Drug Company produces a supplement to improve bone density. Conversion costs are added evenly throughout the production process. The following information is available for March: REQUIRED a. Compute the number of units completed in March. b. Compute the cost per equivalent unit for conversion costs. c. Compute the conversion costs included in units completed in March. d. Compute the conversion costs included in units in process at the end of March