Using the following income statements, perform the calculations needed for vertical analyses. (Round your percentages to 1 decimal place.Omit the "%" sign in your response.) LOCKEY FENCING CORPORATION Vertical Analysis of Income Statements For the Years Ended December 31 2010 2009 Net sales $ 100,000 % $ 75,000 % Cost of goods sold 58,000 % 45,000 % Gross profit 42,000 % 30,000 % Selling, general, and administrative expenses 9,000 % 4,500 % Income from operations 33,000 % 25,500 % Interest expense 3,000 % 3,750 % Income before income tax 30,000 % 21,750 % Income tax expense 9,000 % 6,525 % Net income $ 21,000 % $ 15,225 %