Analyze and record transactions for merchandise purchases using a perpetual system. Journal Entry A buyer uses a perpetual inventory system, and it purchased $4,000 of merchandise on credit terms of 2/10, n/30 on December 15, the buyer pays the invoice in full. Complete the buyer's necessary journal entry by selecting the account names and dollar amounts from the drop-down menus. The order of the account names in the journal entry must match the illustration set forth in this module. 5. Later, on Dec. 15