Estimating Allowance for Doubtful Accounts Kirchhoff Industries has a past history of uncollectible accounts, as shown below. Age Class Not past due 1-30 days past due 31-60 days past due 61-90 days past due Percent Uncollectible 2% 6 25 35 50 Over 90 days past due Estimate the allowance for doubtful accounts, based on the aging of receivables schedule below. Kirchhoff Industries Aging of Receivables Schedule Customer Subtotals Balance Not Past Due 559,700 330,200 50,400 1-30 Days Past Due 31-60 Days Past Due 61-90 Days Past Due Over 90 Days Past Due 123,100 28,000 Conover Industries 15,000 28,000 15,000 Keystone Company 19,900 19,900 Moxie Creek Inc. 9,300 9,300 Rainbow Company 11,000 11,000 Swanson Company Totals 31,500 31,500 646,400 361,700 Percentage uncollectible 2% 134,100 6% 59,700 25% 47,900 35% 43,000 50% Allowance for Doubtful Accounts