Given the following information, compute the total bad debt expense using percentage of sales method: Net credit sales: $260,000 Historical percentage of credit losses: 3.5% Beginning allowance of doubtful accounts credit balance: 3,100 Accounts receivable 90 days, 20% deemed uncollectible: 20,000 . O $4,800 O $9.100 $16,800 O $48,000