Final answer:
To calculate the average rate of return for the project, add the total income and the residual value, then divide it by the total investment and multiply by 100%. The average rate of return for this project is 59.5%.
Step-by-step explanation:
To calculate the average rate of return for the project, we need to find the total return and the total investment. The total return is the sum of the total income and the residual value, which is $148,500 + $30,000 = $178,500. The total investment is the cost of the project, which is $300,000.
Next, we can use the formula for an average rate of return:
Average Rate of Return = (Total Return / Total Investment) * 100%
Plugging in the values, we get:
Average Rate of Return = ($178,500 / $300,000) * 100% = 59.5%