) At the end of January, the unadjusted trial balance of Ali Baba, Inc. included the following accounts: Debit Credit 500,000 $ Sales (80% represent credit sales) Accounts Receivable Allowance for Doubtful Accounts $ 340,000 $ 800 Ali Baba uses the income statement approach in estimating uncollectible accounts expense, and uncollectible accounts expense is estimated to be 2% of credit sales. Account receivable, John of