I need the formula for below Q

Question 1 How much is the expected average rate of return for a proposed investment of $800,000 in a fixed asset with a useful life of 4 years, straight-line depreciation, no residual value, and an expected total net income of $360,000 for the 4 years?

• a. 45%
• Selected: b. 22.5%This answer is correct.
• c. 11.3%
• d. 5.5%

Correct! The expected average rate of return for this scenario is 22.5%.