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. a. Credit balance of \\( \\$ 310 \\) in Allowance for Doubtful Accounts just prior to adjustment. Analysis of Accounts Receivable indicates uncollectible recelvables of \\( \\$ 7,490 \\). b. Credit balance of \\( \\$ 310 \\) in Allowance for Doubtful Accounts Just prior to adjustment. Uncollectible receivables are estimated at \3 of credit sales, which totaled \\( \\$ 892,000 \\) for the year