Problem 5-21A (Static) Inventory valuation based on the lower-of-cost-or-market rule LO 5-2 At the end of the year, Randy's Parts Company had the following items in inventory. Item P1 Quantity Unit Cost Unit Market Value 60 $85 $ 98 P2 40 70 72 P3 80 130 120 P4 70 125 130 ences 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.