Final answer:
The total cost of the merchandise is $8100. To calculate a firm's accounting profit, one subtracts total costs from sales revenue. In the example provided, the firm would have an accounting profit of $50,000.
Step-by-step explanation:
The total cost of the merchandise a company purchased on June 15 is explicitly stated in the question as 8100. When calculating a firm's accounting profit, you subtract the costs from the sales revenue. For example, if a firm had sales revenue of $1 million last year and spent $600,000 on labor, $150,000 on capital, and $200,000 on materials, the firm's accounting profit would be calculated as follows:
Sales Revenue - (Cost of Labor + Cost of Capital + Cost of Materials) = Accounting Profit
$1,000,000 - ($600,000 + $150,000 + $200,000) = $50,000
Therefore, the firm's accounting profit would be $50,000.