At January 1, 2019, Betty DeRose, Inc. had an allowance for bad debts with a $4,500 credit balance. During 2019, Betty wrote-off as uncollectible accounts receivable in the amount of $6,200. At December 31, 2019, Betty had total accounts receivable of $216,000 and prepared the following aging schedule:  Accounts Receivable % Uncollectible not past due $100,000 1% 1-30 days past due 60,000 4% 31-60 days past due 27,000 8% 61-90 days past due 19,000 25% over 90 days past due 10,000 40% total accounts receivable $216,000 Calculate the amount of bad debt expense recorded by Betty DeRose, Inc. for 2019.