5-66B Aging Method Bad Debt Expense Carol Simon, the manager of Handy Plumbing, has provided the following aging schedule for Handy's accounts receivable: Accounts Proportion Expected Receivable Category Amount to Default 0-20 days $92,600 0.03 21-40 days 12,700 0.09 41-60 days 17,800 0.14 Over 60 days 2,100 0.30 $125,200 Carol indicates that the $125,200 of accounts receivable identified in the table does not include $9,400 of receivables that should be written off. Required: 1. Journalize the $9,400 write-off. 2. Determine the desired postadjustment balance in allowance for doubtful accounts. 3. If the balance in allowance for doubtful accounts before the $9,400 write-off was a debit of $550, compute bad debt expense. Prepare the adjusting entry to record bad debt expense