As of 12/31/19, Pawnee Corp. has A/R of $500,000. The company splits its accounts receivables into three age categories and estimates probable uncollectability for each category: Age Not yet due Up to 90 days past due A/R Amount % Uncollectable $400,000 1% 80,000 10% 20,000 30% $500,000 Over 90 days past due Total As of 12/31/19, Pawnee Corp's Allowance for Doubtful Accounts has a credit balance of $1,000 before any adjusting entries. What will be the ending balance in the Allowance for Doubtful Accounts after Pawnee Corp. records adjusting entries for 2019? Enter your answer as a positive number in the box below