Here Is the problem: 3. Shore Co. provides for doubtful accounts based on 3% of credit sales. The following data are available for 2010. What is the balance in the Allowance for Doubtful Accounts at December 31, 2010? Credit sales during 2010 $2,400,000 Allowance for Doubtful accounts 1/1/10 17,000 Collection of accounts written off in prior years (customer credit was reestablished) 8,000 Customer accounts written off as uncollectible during 2010 30,000