Estimating Allowance for Doubtful Accounts Kirchhoff Industries has a past history of uncollectible accounts, as shown below. Percent Uncollectible Age Class 1% 6 Not past due 1-30 days past due 31-60 days past due 61-90 days past due Over 90 days past due 25 35 50 Estimate the allowance for doubtful accounts, based on the aging of receivables schedule below. Kirchhoff Industries Aging of Receivables Schedule Customer Subtotals Conover Industries Keystone Company Moxie Creek Inc. Rainbow Company Swanson Company Total receivables Percentage uncollectible Allowance for Doubtful Accounts Not Past 1-30 Days 31-60 Days 61-90 Days Over 90 Days Balance Due Past Due Past Due Past Due Past Due 652,500 385,000 143,600 58,700 32,600 32,600 18,800 18,800 18,700 18,700 7,000 7,000 10,200 10,200 26,500 26,500 733,700 411,500 153,800 65,700 51,300 51,400 1% 6% 25% 35% 50%