Amazon.com, Inc. operates an online retail platform. For the year ended December 31, 20X4, the company reported the following information:

• Total revenue: $60,000,000
• Cost of goods sold: $25,000,000
• Selling and administrative expenses: $12,000,000
• Other operating expenses: $8,000,000
• Income tax expense: $10,000,000 Calculate the company's net income, gross profit margin, operating income, and net profit margin.