Providing for Doubtful Accounts At the end of the current veai, the accounts recivable account has a debit bolance of $977,000 and sales for the year total $11,070,000 a. The allowance account before adjustment has a credit balance of $13,200. Ead dobt expense is estimated at 3/4 of 1% of sales. b. The allowance account before adjustment has a credit balance of 513,200. An aging of the accounts in the customer ledger indicates estimated doubthal sccounts of $42,200. c. The dliowance account before adjustment has a debit balance of $9,100. Bad debt expense is estimated at 1/4 of 1 of of sales. d. The allewance account before adjustment has a debit balance of $9,100. An aging of the accounts in the customer ledger indicates estimated doublful accounts of \$75,500. Determine the amount of the adjusting entry to provide for doubtful accounts under each of the assumptions (a through d) listed abeve. a. 1 b. 1 c. 1 d. 1