Flyer estimates bad debt expense assuming that 1% of credit sales have historically been uncollectible. How much is Flyer’s bad debt expense? Cash sales, $156,000 Credit sales, $456,000 Selling and administrative expenses, $116,000 Sales returns and allowances, $36,000 Gross profit, $496,000 Accounts receivable, $165,000 Sales discounts, $20,000 Allowance for doubtful accounts credit balance, $1,800