Dawnings Common-Size Income Statement 2011 2010 2009 2008 2007 2006 Net sales 100.00 100.00 100.00 100.00 100.00 100.00 Cost of sale 42.69 40.86 41.23 41.20 40.41 41.08 Gross profit 57.31 59.14 58.77 58.80 59.59 58.92 Selling, general and administrative expenses 34.41 34.79 34.46 34.84 35.70 35.21 Other (income) expense, net (0.05) 1.93 0.72 3.61 4.04 5.49 Operating profit 22.95 22.42 23.59 20.35 19.84 18.22 Interest expense, net. 0.31 0.38 0.50 0.75 1.25 1.39 Income before income taxes 22.64 22.04 23.08 19.60 18.59 16.83 Provision for income taxes 7.38 7.18 7.44 6.31 5.50 5.30 Net income including interests 15.26 14.86 15.64 13.29 13.08 11.53 Less: Net income attributable to interests 0.74 0.71 0.69 0.52 0.49 0.47 Net income attributable to Dawning Company 14.53 14.15 14.95 12.77 12.60 11.06 Required: analyse and interpret the Common-Size Income statement on the company performance for the period 2006 to 2011