
Answer:
The firm earns revenues of $360,000 per year. To receive a normal profit, the firm described above would have to earn additional revenue of $90,000
Explanation:
As per the information provided in the question, the current profit/loss after deducting all expenditure from income is as follows:
Particular                   Amount ($)
Revenue                    360,000
Less: Wages and Salaries      (200,000)
Less: Materials               (75,000)
Less: New Equipment          (30,000)
Less: Rented Property         (20,000)
Less: Interest Costs            (35,000)
Profit/Loss                      0
As confirmed from the calculation above currently no profit is being earned even after the owner/manager not receiving income from the firm. Therefore, the firm should generate additional revenue of $90,000 in order to earn normal profit.