Bad debts over time

Financial information for CNG Inc. follows:

2012

2011

2010

Credit sales

$205,000

$200,000

$180,000

Actual bad debt write-offs

11,000

10,000

6,000

The company estimates bad debts for financial reporting purposes at 3 percent of credit sales. The balance in allowance for doubtful accounts as of January 1, 2010, was $10,000.

REQUIRED:

a. Provide the journal entries related to allowance for doubtful accounts for 2010, 2011, and 2012.

b. Compute the balance in allowance for doubtful accounts as of December 31, 2012.

c. Comment on the sufficiency of the bad debt expense and allowance over the three-year period. How did you come to your conclusion?