Harney Inc. uses the percentage of credit sales method of estimating doubtful accounts. The Allowance for Doubtful Accounts has an unadjusted credit balance of $3,300 and the company had $170,000 of net credit sales during the period. Harney has experienced bad debt losses of 6% of credit sales in prior periods. After making the adjusting entry for estimated bad debts, what is the ending balance in the Allowance for Doubtful Accounts account? $6,600. $6,900. $10,200. $13,500.