At January 1,2019, Towing Company reported an allowance for bad debts with a $4,300 credit balance. At December 31, 2019, Towing Company prepared the following aging schedule:  Accounts Receivable % Uncollectible not past due $135,000 3% 1-30 days past due 42,000 7% 31-60 days past due 28,000 11% 61-90 days past due 15,000 16% over 90 days past due 4,000 45% Based on the above information, Towing Company reported bad debt expense of $11,600 for 2019. Calculate the amount of accounts receivable written off as uncollectible by Towing Company during 2019.