***PLEASE PREPARE IN AN EXCEL SHEET WITH FORMULAS***

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Based on Problem 7-4 Situation #2: From inception of operations to December 31, 2020, Bridgeport Corporation provided for uncollectible accounts receivable under the allowance method. The provisions are recorded, based on analyses of customers with different risk characteristics. Bad debts written off were charged to the allowance account; recoveries of bad debts previously written off were credited to the allowance account, and no year-end adjustments to the allowance account were made. Bridgeport's usual credit terms are net 30 days. The balance in Allowance for Doubtful Accounts was $131,300 (Cr.) at January 1, 2020. During 2020, credit sales totaled $9,101,900, the provision for doubtful accounts was determined to be $182,038, $91,019 of bad debts were written off, and recoveries of accounts previously written off amounted to $19,950. Bridgeport installed a computer system in November 2020, and an aging of accounts receivable was prepared for the first time as of December 31, 2020. A summary of the aging is as follows. Classification by Month of Sale Estimated % Uncollectible Balance in Each Category $1,275,500 655,900 2% November-December 2020 July-October January-June 10% 27% Prior to 1/1/20 449,700 158,000 $2,539,100 74% Based on the review of collectability of the account balances in the "prior to 1/1/20" aging category, additional receivables totaling $59,000 were written off as of December 31, 2020. The 74% uncollectible estimate applies to the remaining $99,000 in the category. Effective with the year ended December 31, 2020, Bridgeport adopted a different method for estimating the allowance for doubtful accounts at the amount indicated by the year-end aging analysis of accounts receivable. Prepare a schedule analyzing the changes in Allowance for Doubtful Accounts for the year ended December 31, 2020. Show supporting computations in good form. (Hint: In computing the 12/31/20 allowance, subtract the $59,000 write-off.)