XYZ Corporation provides the following year-end data:

• Cash: $100,000
• Short-Term Investments: $50,000
• Accounts Receivable: $75,000
• Inventory: $80,000
• Prepaid Insurance: $10,000
• Accounts Payable: $30,000
• Short-Term Debt: $20,000
• Long-Term Debt: $150,000
• Common Stock: $200,000
• Retained Earnings, beginning of year: $90,000
• Sales Revenue: $400,000
• Cost of Goods Sold: $250,000
• Administrative Expenses: $70,000
• Interest Expense: $5,000
• Tax Expense: $10,000

Requirements:

1. Determine XYZ Corporation's net income.
2. Calculate the gross profit.
3. Compute the current ratio.
4. Find the ending retained earnings.