Final answer:
The firm's accounting profit is $50,000.
Step-by-step explanation:
The firm's accounting profit can be calculated by subtracting the explicit costs from the total revenues. In this case, the total revenues are $1 million and the explicit costs are $600,000 for labor, $150,000 for capital, and $200,000 for materials. So, the accounting profit is $1,000,000 - ($600,000 + $150,000 + $200,000) = $50,000.