The balance sheet of Marin Company at December 31, 2019, includes the following. Notes receivable $52,700 Accounts receivable 193,300 Less: Allowance for doubtful accounts 27,400 $218,600 Transactions in 2020 include the following. 1. Accounts receivable of $142,200 were collected including accounts of $69,600 on which 2% sales discounts were allowed. 2. $5,560 was received in payment of an account which was written off the books as worthless in 2019. 3. Customer accounts of $27,600 were written off during the year. 4. At year-end, Allowance for Doubtful Accounts was estimated to need a balance of $27,700. This estimate is based on an analysis of aged accounts receivable.