At January 1, 2021, Tanner Company reported accounts receivable of $262,750 and had an allowance for doubtful accounts with a $13,690 credit balance. During 2021, Tanner Company had sales revenue of $531,250, recoveries of $6,190, cash collections from credit customers of $493,580 (the $493,580 does not include the recovery), and bad debt expense of $20,870. During 2021, Tanner Company wrote-off accounts receivable as being uncollectible (note - the amount of the write-offs has been intentionally omitted from this problem). At December 31, 2021, Tanner Company prepared the following aging schedule: Accounts Receivable % Uncollectible not past due $146,100 3% 1-45 days past due 56,400 9% 46-90 days past due 38,600 11% 91-135 days past due 21,850 ? over 135 days past due 23,930 40% Calculate the percentage estimated to be uncollectible for the accounts receivable that are 91-135 days past due. Enter your answer as a whole number (i.e. 10). Do not enter your answer as a decimal (i.e., .10). Do not enter your answer with the percentage symbol included (i.e., 10%).