At each calendar year-end, Mazie Supply Co. uses the percent of accounts receivable method to estimate bad debts. On December 31,2017 , it has outstanding accounts receivable of $133,500, and it estimates that 4.0% will be uncollectible. Prepare the adjusting entry to record bad debts expense for year 2017 assuming that the Allowance for Doubtful Accounts has a $2,270 credit balance before the adjustment