Providing for Doubtful Accounts At the end of the current year, the accounts receivable account has a debit balance of $799,000 and sales for the year total 59,060,000 a. The allowance account before adjustment has a debit balance of $10,800. Bad debt expense is estimated at 1/2 of 1% of sales. b. The allowance account before adjustment has a debit balance of $10,800. An aging of the accounts in the customer ledger indicates estimated doubtful accounts of $34,600. c. The allowance account before adjustment has a credit balance of $8,600. Bad debt expense is estimated at 1/4 of 1% of sales. d. The allowance account before adjustment has a credit balance of 600. An aging of the accounts in the customer ledger indicates estimated doubtful accounts of $71,400 Determine the amount of the adjusting entry to provide for doubtful accounts under each of the assumptions (a through d) listed above