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 Over 90 days past due Percent Uncollectible 1% 6 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 Balance 797,100 175,400 71,700 Not Past Due 1-30 Days Past Due 31-60 Days Past Due 61-90 Days Past Due Over 90 Days Past Due 470,300 Conover Industries 14,600 Keystone Company 18,700 39,900 18,700 39,800 14,600 Moxie Creek Inc. 9,200 9,200 Rainbow Company 11,100 11,100 Swanson Company 25,800 25,800 Totals 876,500 Percentage uncollectible 496,100 1% 186,500 0% 80,900 25% 58,000 35% 54,400 50% Allowance for Doubtful Accounts 675X 1097 X 1,748 X 15.575 X 17,815 X 21.050 X