P10-4 Personal finance: Long-term investment decisions, payback period (LG 2; Intermediate)
a. and b. Project A Project B
Year Annual
Cash Flow Cumulative
Cash Flow Annual
Cash Flow Cumulative
Cash Flow
1 $2,200 $2,200 $1,500 $1,500
2 2,500 4,700 1,500 3,000
c. Project A is more attractive than project B because of its shorter payback period.
d. One shortcoming of the payback method is its disregard of total cash flows over project life.
Here, for example, project A generates $11,000 in total cash flows (implying an NPV at a zero
discount rate of $2,000), while total cash flows for project B equal $12,000, implying an NPV
P10-5 NPV (LG 3; Basic)
NPV Present value of cash inflows from project Initial investment. All projects have 15-year
inflows is:
a. Annual cash inflows = $150,000, so present value = PV(.09, 15, -150000) = $1,209,103.26
NPV $2,942,151.28 $3,000,000 = $ NPV is negative, so project should be
rejected.
P10-6 NPV for varying cost of capital (LG 3; Basic)
NPV Present value of cash inflows from project Initial investment. All projects have 8-year
lives, an initial cost of $360,000, and annual cash inflows of $62,650. The Excel command for
a. Cost of capital = 6%, so present value of cash inflows = PV(0.06,8,62650) = $389,043.58.