Determine the amount to be added to allowance for doubtful accounts in each of the following cases and indicate the ending balance in each case. Credit balance of $460 in Allowance for Doubtful Accounts just prior to adjustment. Analysis of Accounts Receivable indicates uncollectible receivables of $7, 800. Amount added: $ Ending balance: $ Credit balance of $460 in Allowance for Doubtful Accounts just prior to adjustment. Uncollectible receivables are estimated at 1% of credit sales, which totaled $1, 165,000 for the year. Amount added: $ Ending balance: $