At the beginning of \(20 \mathrm{xx}\), the balances for Accounts Receivable and Allowance for Uncollectible Accounts were 430,000 and 31,400 , respectively. During the current year, credit sales were \(3,200,000\) and collections on account were \(2,950,000\). In addition, 35,000 in uncollectible accounts were written off. Using \(T\) accounts, determine the year-end balances of Accounts Receivable and Allowance for Uncollectible Accounts. Then, make the year-end adjusting entry to record the uncollectible accounts expense, and show the year-end balance sheet presentation of Accounts Receivable and Allowance for Uncollectible Accounts under each of the following conditions:

a. Management estimates the percentage of uncollectible credit sales to be 1.2 per cent of total credit sales.

b. Based on an ageing of accounts receivable, management estimates the end-of-year uncollectible accounts receivable to be 38,700 .

Post the results of each entry to the T account for Allowance for Uncollectible Accounts.