Selected unadjusted account balances at December 31, 2020, are shown below for Demron Servicing Accounts receivable Account Debit Credit $76,000 Allowance for doubtful accounts Sales (all on credit) Sales discounts $ 1,220 534,000 14,000 Required: a. Demron estimates that 4.5% of net credit sales will prove to be uncollectible. Prepare the adjusting entry required on December 31 2020, to estimate uncollectible receivables. View transaction list Journal entry worksheet Record the estimate for uncollectible accounts.