Calabogie Camera Shop Ltd. reports the following cost and net realizable value information for its inventory at December 31: Units Unit Cost Unit NRV 4 8 $171 157 $158 159 Cameras: Sony Canon Light Meters: Gossen Sekonic 12 141 120 146 116 10 Prepare the adjusting journal entry required, if any, to record the lower of cost and net realizable value of the inventory assuming Calabogie Camera Shop uses a perpetual inventory system. (Listall debit entries before credit entries. Credit account titles are automatically indented when the amount is entered. Do not indent manually. If no entry is required, select "No Entry" for the account titles and enter for the amounts.) Date Account Titles and Explanation Debit Credit Dec. 31