Final answer:
The firm's accounting profit is calculated by subtracting the total expenses (labor, capital, materials) from the sales revenue, resulting in an accounting profit of $50,000.
Step-by-step explanation:
Calculation of Accounting Profit
To calculate a firm's accounting profit, we subtract the explicit costs from the total revenues. In the given scenario, a firm had sales revenue of $1 million last year. The expenses were as follows: $600,000 on labor, $150,000 on capital, and $200,000 on materials. Therefore, the accounting profit is calculated as:
Accounting profit = total revenues minus explicit costs
= $1,000,000 - ($600,000 + $150,000 + $200,000)
= $1,000,000 - $950,000
= $50,000