Department S had 700 units 66% completed in process at the beginning of the period, 8,000 units completed during the period, and 1,000 units 48% completed at the end of the period. What was the number of equivalent units of production for the period for conversion if the first-in, first-out method is used to cost inventories? Assume the completion percentage applies to both direct materials and conversion cost. a. 7,538 b. 5,018 (c. 9.01k d. 7,100