at the end of the year, randy’s parts company had the following items in inventory. item quantity unit cost unit market value p1 69 $ 87 $ 89 p2 36 68 78 p3 82 135 123 p4 42 62 70 required a. determine the amount of ending inventory using the lower-of-cost-or-market rule applied to each individual inventory item. b. provide the general journal entry necessary to write down the inventory based on requirement a. assume that randy’s parts company uses the perpetual inventory system. c. determine the amount of ending inventory, assuming that the lower-of-cost-or-market rule is applied to the total inventory in aggregate. d. provide the general journal entry necessary to write down the inventory based on requirement c. assume that randy’s parts company uses the perpetual inventory system.