Chapter 12 – Strategy and the Analysis of Capital Investments
12–32
12–40 NPV, Sensitivity Analysis (30 minutes)
1. NPV of proposed investment,15-year project life:
PV of after-tax cash inflows = $600,000 × 6.142 = $3,685,200
Initial investment outlay = 3,500,000
NPV of proposed investment, 12-year project life:
PV of after-tax cash inflows = $600,000 × 5.660 = $3,396,000
Initial investment outlay = 3,500,000
Since NPV = ($104,000), the investment should not be undertaken.
2. We are given annual after-tax cash inflows of $600,000 and an initial
investment outlay of $3,500,000. To generate an IRR of exactly 14.00%, the
following must hold:
PV of Future Cash Inflows = Initial Investment Outlay
$600,000 × An,14% = $3,500,000
is approximately 13 years.
Though not discussed in the text, we can solve exactly for the number of years,
n, once we know the formula to calculate the PV of an ordinary annuity (i.e., the
formula for the factors included in Chapter 12, Appendix C, Table 2). This
formula is:
Annuity Factor = [(1 ÷ r) × [1 – [1 ÷ rn]], where n = the number of periods and
r = the discount rate (defined in terms of n, e.g., in years)
In the present case, the annuity factor = 5.83333 and r = 0.14. Thus, we have