Lind Manufacturing had the following account balances as of January 1: Direct Materials Inventory Work in Process Inventory Finished Goods Inventory Manufacturing Overhead $ 70,000 180,000 300,000 During the month of January, all of the following occurred: 1. Direct labor costs were $460,000 for 18,400 hours worked. 2. Direct materials costing $340,000 and indirect materials costing $10,000 were purchased. 3. Sales commissions of $210,000 were earned by the sales force. 4. Direct materials of $330,000 were used in production. 5. Miscellaneous selling and administrative costs of $160,000 were incurred. 6. Factory supervisors earned salaries of $36,000. 7. Indirect labor costs for the month were $25,000. 8. Monthly depreciation on factory equipment was $30,000. 9. Monthly utilities expenses of $16,000 were incurred in the factory. 10. Completed units with manufacturing costs of $780,000 were transferred to finished goods. 11. Monthly insurance costs for the factory were $5,000. 12. Monthly property taxes on the factory of $3,000 were incurred and paid. 13. Units with manufacturing costs of $830,000 were sold for $1,400,000. Required: a. If Lind assigns manufacturing overhead of $90,000, what will be the balances in the Direct Materials, Work in Process, and Finished Goods Inventory accounts at the end of January? b. As of January 31, what will be the balance in the Manufacturing Overhead account? c. What was Lind's operating income for January?