Deacon Co. reported annual net sales for 2004 and 2005 of $565,000 and $647,000, respectively. Its year-end balances of accounts receivable follow: December 31, 2004, $51,000; and December 31, 2005, $83,000.

(a) Calculate its days’ sales uncollected at the end of each year,

(b) Evaluate and com¬ ment on any changes in the amount of liquid assets tied up in receivables.