For Pepsi vs. Coca-Cola (Soft Drinks/Beverage/Snacks), I need to evaluate trend analysis, various ratios, provide balance sheet examples (market-to-book ratio, debt-equity ratio, current ratio, quick ratio), and income statement examples (profitability ratio, working capital days, leverage ratios).

As I'm building knowledge on a company and whether or not buy, keep, or sell, understanding financial strength is of utmost importance. I need to analyze at least three years of ratio performance and how a company is trending over time. This, compared to its competition, will help identify which company is most worthy of an investment to maximize a ROI.

I'm not sure what do to. I appreciate the help.