Final answer:
The firm's accounting profit can be calculated as total revenues minus explicit costs. In this case, the accounting profit is $50,000.
Step-by-step explanation:
To calculate the firm's accounting profit, we need to subtract 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 can be calculated as follows: $1,000,000 - ($600,000 + $150,000 + $200,000) = $50,000.
Therefore, the firm's accounting profit is $50,000.