MC Qu. 90 At the beginning of the recent... At the beginning of the recent period, there were 1,380 units of product in a department, 35% completed. These units were finished and an additional 6,600 units were started and completed during the period. 1,440 units were still in process at the end of the period 25% completed. Using the weighted average method, the equlvalent units produced by the department were: O 8.340 units O 6,600 units O9420 units 7420 units. O 7980 units