Performance Bike Co. is a wholesaler of motorcycle supplies. An aging of the company's accounts receivable on December 31 and a historical analysis of the percentage of uncollectible accounts in each age category are as follows: Estimate the proper balance of the allowance for doubtful accounts should be as of December 31. Performance Bike Co. Estimation of Uncollectible Accounts December 31 Estimated Uncollectible Estimated Uncollectible Accounts Amount Accounts Percent Age Interval Balance Not past due $514,000 1/2% 1-30 days past due 56,500 2 31-60 days past due 25,700 7 61-90 days past due 18,500 17 91-180 days past due 13,400 39 Over 180 days past due 9,800 65 Total $637,900 4