mating uncollectible accounts expense: Harris Corporation had the following accounts receivable and allowance for uncollectible accounts balances at the end of 2016 before any write off and expense adjustment. Accounts Receivable (before write-off) $800,000 Debit Allowance for Doubtful Accounts (before write-off) $3,000 Credit Sales in 2016 totaled $1,400,000. Sales returns and allowances $50,000. Write-off of accounts amounted to $2,000. Required Calculate uncollectible accounts expense and ending balance for the allowance for uncollectible accounts under the following independent assumptions: 1.5% of credit sales will prove uncollectible. 5% of ending accounts receivable are uncollectible.. 1. a. b