Great Landscapes Company estimates its doubtful accounts by aging its accounts receivable and applying percentages to various aged categories of accounts. The Great Landscapes Company computes a total of $3,600 in estimated doubtful accounts as of December 31, 2019. Its Accounts Receivable account has a balance of $112,800 and its Allowance for Doubtful Accounts has a credit balance of $600 before adjustment at December 31, 2019. How much bad debts expense will Great Landscapes report in 2019