**(a) Cash Payback Period:**
The cash payback period is the time it takes for the initial investment to be recovered through net cash flows. To calculate it, you sum the net cash flows until they cover the initial cost.
| Year | Net Cash Flow |
|------|---------------|
| 1 | $44,900 |
| 2 | $39,200 |
| 3 | $36,000 |
| 4 | $29,100 |
| 5 | $25,205 |
The cumulative net cash flow at the end of Year 4 is $44,900 + $39,200 + $36,000 + $29,100 = $149,200. The cash payback period falls within Year 4, and the remaining amount to recover in Year 5 is $105,700 - $149,200 = -$43,500.
Therefore, the cash payback period is approximately 4 years, with partial recovery in Year 5.
**(b) Annual Rate of Return:**
The annual rate of return (ARR) is calculated using the average annual accounting profit divided by the initial investment.
\[ARR = \frac{\text{Average Annual Net Income}}{\text{Initial Investment}}\]
Average Annual Net Income = \(\frac{\$9,700 + \$11,100 + \$14,200 + \$15,300 + \$18,405}{5} = \$13,541\)
\[ARR = \frac{\$13,541}{\$105,700} \times 100\]
The annual rate of return is approximately 12.81%.
**(c) Net Present Value (NPV):**
The Net Present Value is calculated by subtracting the initial investment from the present value of the expected cash inflows.
\[NPV = \sum_{t=1}^{5} \frac{\text{Net Cash Flow}_t}{(1 + \text{Discount Rate})^t} - \text{Initial Investment}\]
Given the 11% target rate of return:
\[NPV = \frac{\$44,900}{(1 + 0.11)^1} + \frac{\$39,200}{(1 + 0.11)^2} + \frac{\$36,000}{(1 + 0.11)^3} + \frac{\$29,100}{(1 + 0.11)^4} + \frac{\$25,205}{(1 + 0.11)^5} - \$105,700\]
The NPV is approximately $9,594.34.