At the beginning of October 2021, Butler Corporation had the following account balances:

Raw Materials Inventory $30,000

Work in Process Inventory 45,000

Finished Goods Inventory 20,000

During October, the following transactions took place.

• Raw materials were purchased on account, $150,000.
• Factory payroll consisted of $100,000 for direct labor employees and $20,000 for indirect labor employees.
• Office salaries totaled $50,000 for the month.
• Utilities of $40,000 were accrued; 70 percent of the utilities cost is for the factory area.
• Depreciation of $30,000 was recorded on plant assets; 70 percent of the depreciation is related to factory machinery and equipment.
• Rent of $30,000 was paid on the building. The factory occupies 50 percent of the building.
• Selling expenses in October were $30,000.
• At the end of October, the Work in Process Inventory balance was $20,000.
• At the end of October, the balance in Finished Goods Inventory was $30,000.
• At the end of October, the balance in Raw Materials Inventory was $50,000.
• At the end of October, the balance in Accounts Receivables was $300,000.
• At the end of October, the balance of Cash was $400,000.
• At the end of October, the balance in Retained Earnings was $900,000.

Questions:

1. Determine the total amount of cost of goods manufactured for October 2021.
2. Compute the cost of goods sold for October 2021.
3. How much would October sales have been to generate operating income of $100,000?