4. How has Whole Foods performed over the past 3 years (2011-2013)? a. In the Excel, estimate the following financial ratios: Ratio Categories Ratio 2011 2012 2013 Liquidity Current Ratio Activity Current Asset Turnover Fixed Asset Turnover Profitability Gross Margin EBITDA Margin Operating Margin Net Profit Margin EPS ROC Growth Sales Growth b. What trends do you observe in these ratios? What do they tell you about Whole Foods financial performance during 2011-2013? Use the categories to help you explain the financial performance. c. What do the financial ratios in Exhibit 4 tell you about the past operating performance of Whole Foods? How informative are the historical ratios for Whole Foods prospective performance?