Financial summary for Pfizer Inc. as of December 31, 2023:

• Total Revenue: $80 billion
• Cost of Goods Sold: $30 billion
• Operating Expenses: $35 billion
• Net Income: $10 billion
• Total Assets: $120 billion
• Shareholders’ Equity: $50 billion

Evaluate Pfizer’s performance by computing:

1. Gross Profit Margin.
2. Operating Profit Margin.
3. Net Profit Margin.
4. Return on Assets (ROA).
5. Return on Equity (ROE).