quickly help please

Presented below is an aging schedule for Vaughn Company at December 31, 2021. At December 31,2021 , the unadjusted balance in Allowance for Doubtful Accounts is a credit of $11,600. Journalize and post the adjusting entry for uncollectibles at December 31, 2021. (Credit account titles are automatically indented when amount is entered. Do not indent manually.) \begin{tabular}{|c|c|c|c|c|c|} \hline \multicolumn{6}{|c|}{\begin{tabular}{l} Allowance for Doubtful \\ Accounts \end{tabular}} \\ \hline Date & Explanation & Ref. & Debit & Credit & Balance \\ \hline Dec. 31 & Balance & & & & \\ \hline Dec. 31 & Adjusting & & & & \\ \hline \end{tabular}