Problem 9-2A Information related to Mingenback Company for 2017 is summarized below. Total credit sales $2,419,000 Accounts receivable at December 31 828,000 Bad debts written off 33,800 (a) what amount of bad debt expense will Mingenback Company report if it uses the direct write-off method of accounting for bad debts? (b) Assume that Mingenback Company estimates its bad debt expense to be 3% of credit sales. What amount of bad debt expense will Mingenback record if it has an Allowance for Doubtful Accounts credit balance of $4,400? (c) Assume that Mingenback Company estimates its bad debt expense based on 6% of accounts receivable. What amount of bad debt expense will Mingenback record if it has an Allowance for Doubtful Accounts credit balance of $3,400? (d) Assume that Mingenback Company estimates its bad debt expense based on 6% of accounts receivable. What amount of bad debt expense will Mingenback record if it has an Allowance for Doubtful Accounts debit balance of $3,400