Need help solving uncollectiable accounts-percentage of sales problem

UNCOLLECTIBLE ACCOUNTS- PERCENTAGE OF SALES Rossin's Racers has total credit sales for the year of $280,000 and estimates that 3% of its credit sales will be uncollectible. Record the end-of-period adjusting entry on December 31, in general journal form, for the estimated bad debt expense. Assume the following independent conditions existed prior to the adjustment: 1. Allowance for Doubtful Accounts has a credit balance of $570. 2, Allowance for Doubtful Accounts has a debit balance of $360 CHAPTER 16 Applying Your Knowledge 643