The chart in part a) is prepared by the accountant of Glad Caf. The percentages are based on historical performance. Glad Caf uses the balance sheet approach to estimate uncollectible receivables. Required a) Calculate the company's bad debts. Do not enter dollar signs or commas in the input boxes. Round all answers to the nearest whole number. b) Assume that allowance for doubtful accounts has a credit balance of $870. Calculate the bad debt expense the company will record. Bad debt expense =$