The trial balance before adjustment of Risen Company reports the following balances: Dr. Cr. Accounts receivable $600,000 Allowance for doubtful accounts 10,000 Sales (all on credit) 3,400,000 Sales returns and allowances 240,000 Required: (a) Prepare the entry for estimated bad debts assuming that doubtful accounts are estimated to be 6% of gross accounts receivable. (b) Assume that all the information above is the same, except that the Allowance for Doubtful Accounts has a debit balance of $10,000 instead of a credit balance. Prepare the journal entry