Using the EDGAR database at SEC$$s website, download the Balance Sheet and Income Statement of Walmart, Inc. and Target, Corp., for $2010-2020.$

Part $1$: Calculate Profit Margin, Total Asset Turnover, Equity Multiplier, and Return on Equity for each year and each company. Display your results in a summary table.

Part $2$: Calculate the average, maximum and minimum values of each financial ratio for each company. Display your results in a summary table.

Part $3$: Using DuPont Analysis, compare and explain the difference between the Return on Equity figures of these companies in $2020.$ In other words, evaluate the ROE figure and explain the difference through the areas of profitability, asset management, and use of leverage.

Part $4$: Prepare a graph displaying the value of Return on Equity over the years, for each company. Include a discussion on the trend