b. During 2021, credit sales were $1,705,000; sales discounts taken were $32,000; accounts receivable collected were $1,436,000; and accounts written off during the year totalled $34,000. Prepare the adjusting entry required on December 31, 2021, to estimate uncollectible receivables assuming it is based on the following aging analysis. December 31, 2021 Accounts Receivable $340,000 105,000 30,000 21,000 Age of Accounts Receivable Not due (under 30 days) 1 to 30 days past due 31 to 60 days past due Over 60 days past due Expected Percentage Uncollectible 1% 4% 10% 60% View transaction list Journal entry worksheet < 1 Record the estimate for uncollectible accounts. Note: Enter debits before credits.