I need help answering the questions and figuring out the formulas

Summary income statements and balance sheets are presented for the three largest companies in the chemical industry for fiscal year 2001 (in millions). For additional information, their Web sites (and ticker symbols) are www.dupont.com (DD), www.dow.com (DOW), and www.ppg.com (PPG). The following additional information is provided for fiscal year 2000 (in millions): Name: Student ID: (1) Common-size analysis for fiscal year 2001: Given the information presented on Sheet 1, a) Complete these tables using common-size analysis; b) Summarize the highlights from common size analysis for these companies and indicate possible red flags following the tables. \begin{tabular}{|c|c|c|c|} \hline \multicolumn{2}{|c|}{ Income Statement (Partial) } & Common Size & \multicolumn{2}{|c|}{} \\ \hline Revenues & DuPont & Dow & PPG \\ \hline COGS & 100% & 100% & 100% \\ \hline Gross Profit & & & \\ \hline SG\&A Expenses & & & \\ \hline Net Income & & & \\ \hline \end{tabular} (2) Given the information presented on Sheet 1, calculate the liquidity ratios for the three chemical companies for fiscal year 2001. Show calculations underneath the tahlo