Final answer:
The firm's accounting profit, calculated by subtracting the explicit costs of labor, capital, and materials from the total revenues, was $50,000 last year.
Step-by-step explanation:
Calculating Accounting Profit
The question pertains to the calculation of a firm's accounting profit, which is the total revenues minus the explicit costs. Given that the firm had sales revenue of $1 million last year and incurred costs of $600,000 on labor, $150,000 on capital, and $200,000 on materials, the accounting profit can be determined as follows:
Total Revenues = $1,000,000
Explicit Costs (sum of labor, capital, materials): $600,000 + $150,000 + $200,000 = $950,000
Accounting Profit = Total Revenues - Explicit Costs = $1,000,000 - $950,000 = $50,000
Therefore, the firm's accounting profit last year was $50,000.