Microsoft Corporation has released the financial data for its Gaming segment for the year ended June 30, Year 5.

Income Statement for Year Ended June 30, Year 5

• Revenue: $400,000
• Cost of revenue: $220,000
• Gross profit: $180,000
• Operating expenses: $70,000
• Research and development expenses: $30,000
• Depreciation expense: $20,000
• Operating income: $60,000
• Interest expense: $10,000
• Other income: $5,000
• Net income: $55,000

Balance Sheet as of June 30, Year 5 Assets

• Cash: $80,000
• Accounts receivable: $90,000
• Inventory: $100,000
• Property, plant, and equipment (net): $200,000
• Other assets: $30,000
• Total assets: $500,000

Liabilities

• Accounts payable: $35,000
• Short-term debt: $25,000
• Long-term debt: $70,000
• Stockholders' equity: $370,000
• Total liabilities and stockholders' equity: $500,000

Required:

1. Calculate the gross profit margin.
2. Determine the operating income percentage.
3. Compute the return on assets (ROA).
4. Find the current ratio.
5. Calculate the debt to equity ratio.