Testbank, Question 93 When the average cost method is applied in a periodic inventory system, O the sale of goods during the year will change the unit cost used for calculating ending inventory. O an average cost per unit is not calculated in the same manner that is used for a perpetual inventory system. an average cost per unit is calculated after each purchase rather than at the end of the period. an average cost per unit is calculated at the end of the period rather than after each sale. Question *) .)