Pfizer Inc. (PFE) is a global pharmaceutical company that researches, develops, manufactures, and sells a variety of medicines and vaccines. The following operating data (in millions) were adapted from recent financial statements of Pfizer. Line Item Description Year 2 Year 1 Revenue $ 81,288 $ 41,651 Operating expenses: Cost of goods sold $ (30,821) $(8,484) Selling and general (12,703) (11,597) Other expenses (13,453) (14,534) Total operating expenses $(56,977) $(34,615) Operating income $ 24,311 $ 7,036