Metlock, Inc. has accounts receivable of $102,700 at March 31, 2022. An analysis of the accounts shows these amounts. Balance, March 31 Month of Sale 2022 2021 March $69,000 $78,000 February 14,000 8,300 December and January 11,900 2,200 November and October 7,800 1,200 $102,700 $89,700 Credit terms are 2/10, n/30. At March 31, 2022, there is a $4,600 credit balance in Allowance for Doubtful Accounts prior to adjustment. The company uses the percentage of receivables basis for estimating uncollectible accounts. The company's estimates of bad debts are as shown below Age of Accounts Estimated Percentage Uncollectible Current 2 % 1–30 days past due 7 31–90 days past due 25 Over 90 days past due 50