problem 7. From the following information, interpret the results of operations manufacturing concern using trend ratios: Amount in '000 Dollars For the year ended 31st March 2008 Sales (net) 13,000 2007 2006 2005 12,000 9,500 10,000 Cost of Goods Sold 7,280 6,960 5,890 6,000 Gross Profit 5,720 5,040 3,610 4,000 Selling Expenses 1,200 1,100 970 1,000 Net Operating Profit 4,520 3,940 2,640 3,000