Determine the amount to be added to Aliance for Doubtful Accounts in each of the following cases and indicate the ending balance in each case ..credit cu el 3400 in Alowance for Doubtful Accounts just prior to adjustment. Uning the aging method, the balance of Allowance for Doubtful Accounts is estimated as 470 Amount de Ending balance Ondt bounce of 5400 in Alowance for Doubtful Accounts just prior to adjustment, sed debt expense is estimated at 1% of credit sales, which totaled $890,000 for the Year Amount added Ending balance