At the end of the year, Breyer Associates had a credit balance in its allowance for uncollectible accounts of $12,000 before adjustment. The balance in Breyer's gross accounts receivable is $600,000. Breyer's management estimates that 10% of its accounts receivable balance will not be collected. What journal entry should Breyer record to adjust its allowance for uncollectible accounts? (If no entry is required for a transaction/event, select "No journal entry required" in the first account field.)