12. S& R Company uses the aging of accounts receivable approach to estimate bad debt expense. On December 31, 2020, an analysis of accounts receivable revealed the following: Schedule of Accounts Receivable by Age ZO December 31, 2020 Accounts Receivable Age of Accounts Receivable Expected Percentage Uncollectible Allowance for doubtful accounts 140,000 Not yet due 0.75% 60,000 1-30 days past due 4% 19,000 31-60 days past due 10% 5,000 61-90 days past due 60% 7,000 Over 90 days past due 92% Calculate the amount of allowance for doubtful accounts that should be reported on the balance sheet at December 31, 2020. 5