a. Complete the increase (decrease) in dollars and percent.
b. Comment ontrends.

Rapid Retail Comparative Statements of Income December 31 Increase (Decrease) 2010 2009 Dollars Percent (In thousands of dollars) Net sales Cost of goods sold Gross profit Selling, general and $30,000 20,000 10,000 $28,000 19,500 8,500 administrative expense Operating income Interest expense Income before taxes Income tax expense Net income 3,000 7,000 100 6,900 2,000 $ 4,900 2,900 5,600 80 5,520 1,600 S 3,920