At January 1, 2002, Betty DeRose, Inc. had an allowance for bad debts with a $2,700 credit balance. During 2002, Betty wrote-off accounts receivable as uncollectible in the amount of $850. The aging schedule below was prepared by Betty DeRose, Inc. at December 31, 2002:

                           Accounts Receivable     % Uncollectible

not past due                 $180,000                    2%
1-30 days past due      40,000                          5%
31-60 days past due    20,000                          8%
61-90 days past due    10,000                         20%
over 90 days past due  8,000                            40%

Based on the above information, calculate the amount of bad debt expense recorded by Betty DeRose for 2002. Do not use decimals in your answer.