Also assume that the beginning inventory had accumulated $15,500 of materials and $9,600 of conversion costs in the previous month. During the month of November, current costs include $157,460 of materials and $193,335 of conversion costs. Calculate the average cost per equivalent unit for materials for the month of November. Select one: a. $0.13 b. $0.67 c. $6.85 d. $7.52 e. $8.34