Create a Common Size Income Statement (as Percent of Sales with 1 decimal place). 2017 2018 2019 Sales Cost of Sales Gross Margin Selling & Marketing Administrative Research Operating Income Other Income, Net Earnings Before Ta Taxes Net Income 2017 96,571 34,261 62,310 15,461 4,481 13,037 29,331 570 29,901 4,412 25,489 2018 110,360 38,353 72,007 17,469 4,754 14,726 35,058 1,416 36,474 19,903 16,571 2019 125,843 42,910 82,933 18,213 4,885 16,876 42,959 729 43,688 4,448 39,240 What is the average net income margin for the three years? Answer Bank 31.2% 15.0% 26.4% 24.2%