On January 1, 2013, the balance in Tabor Co.'s Allowance for Bad Debts account was $13,546. During the first 11 months of the year, bad debts expense of $21,399 was recognized. The balance in the Allowance for Bad Debts account at November 30, 2013, was $9,859. Required: (a) What was the total of accounts written off during the first 11 months