Your comparison of the gross margin percent for Jones Drugs for the years 2008 through 2011 indicates a significant decline. This is shown by the following information:

A discussion with Marilyn Adams, the controller, brings to light two possible explanations. She informs you that the industry gross profit percent in the retail drug industry declined fairly steadily for 3 years, which accounts for part of the decline. A second factor was the declining percent of the total volume resulting from the pharmacy part of the business. The pharmacy sales represent the most profitable portion of the business, yet the competition from discount drugstores prevents it from expanding as fast as the nondrug items such as magazines, candy, and many other items sold. Adams feels strongly that these two factors are the cause of the decline.
The following additional information is obtained from independent sources and the client's records as a means of investigating the controller's explanations:

Required
a. Evaluate the explanation provided by Adams. Show calculations to support your conclusions.
b. Which specific aspects of the client€™s financial statements require intensive investigation in thisaudit?

2011 2010 12,916 8,266 4,650 2009 S 11,462 7313 4,149 2008 Sales (thousands) CGS (thousands) Gross margin S 14,211 $ 10,351 9,223 6,573 4,988 35.1 3,778 36.5 Percent 36.0 36.2 Industry Gross Profit Percent for Retailers of Drugs and Related Products 32.7 32.9 33.0 33.2 Jones Drugs (S in thousands) Drug Cost of Goods Sold $3,045 2,919 2,791 2,665 Nondrug Cost of Goods Sold Drug Sales S5,126 5,051 4,821 4,619 Nondrug Sales $9,085 7,865 6,641 5,732 2011 6,178 5,347 4,522 3,908 2009 2008