The following information is from the 2017 records of Armand Music​ Shop: Accounts​ receivable, December​ 31, 2017 ​$43,000 (debit) Allowance for Bad​ Debts, December​ 31, 2017 prior to adjustment ​1,500 (debit) Net credit sales for 2017 ​178,000 Accounts written off as uncollectible during 2017 ​18,000 Cash sales during 2017 ​25,000 Bad debts expense is estimated by the​ percent-of-sales method. Management estimates that​ 6% of net credit sales will be uncollectible. Calculate the amount of bad debts expense for 2017.