QL Corporation sells computer peripherals, primarily on a credit basis. Following are selected financial data, expressed in thousands, for this firm for a recent three-year period. QL had net sales of $26,128,500 in the year 2006 and accounts receivable of $3,023,000 on January 1, 2007.

Required:
(a) Compute QL€™s accounts receivable turnover ratio and age of receivables for years 2007 through 2009.
(b) Did these ratios improve or weaken over this three-year period? Explain.

2007 2008 2009 Net sales S22,456,000 $28,837,500 $26,889,500 A/R (year- end) 3,003,500 4679,000 3,501,500 3,003,500