RV AP $710 E6-10 Tech Computing Store uses a perpetual inventory system and the FIFO cost formula for valuing inventory. The company is now in the process of comparing the cost of its inventory with its net realizable value. The following data are available at Tech Computing's year end, December 31: Units Unit Cost Net Realizable Value Laptop computers 95 $680 Monitors 72 275 210 External hard drives 47 55 80 Tablets 56 300 390 Instructions (a) Determine the lower of cost and net realizable value of the ending inventory. (b) Prepare the journal entry required, if any, to record the adjustment from cost to net realizable value