MINDTAP Q Search this course Jeanelle v From Cengage Questio
Solution
Cost of project = $50,966.31
Annual cash inflow = $11,000
Time = 10 years
WACC = 9%
Present value of cash inflows (at 9% discount rate) = Annual cash inflow x PVAF(9%, 10)
= 11,000 x 6.418
= $70,598
NPV (At 9%) = Present value of cash inflows - Present value of cash outflows
= 70,598 - 50,966.31
= $19,631.69
IRR is the rate at which NPV of the project is 0. Since at 9% discount rate, NPV is positive, IRR must be more than 9%.
Let us discount cash inflows at a higher discount rate, say 18%.
Present value of cash inflows (at 18% discount rate) = Annual cash inflow x PVAF(18%, 10)
= 11,000 x 4.494
= $49,434
NPV (At 18%) = Present value of cash inflows - Present value of cash outflows
= 49,434 - 50,966.31
= - $1,532.31
Since, at 18% discount rate, NPV has become negative, hence IRR must lie below 18%
Let us discount cash inflows at 17%.
Present value of cash inflows (at 17% discount rate) = Annual cash inflow x PVAF(17%, 10)
= 11,000 x 4.659
= $51,249
NPV (At 17%) = Present value of cash inflows - Present value of cash outflows
= 51,249 - 50,966.31
= $282.69
Hence, IRR must lie between 17% to 18%
IRR = Lower rate + [ (NPV at lower rate/NPV at lower rate - NPV at higher rate) ] x (Higher rate - Lower rate)
= 17% + [ (282.69/(282.69 + 1,532.31) ] x (18 - 17)
= 17% + [ 282.69/1,815 ] x 1
= 17% + 0.1557%
= 17.15%
Hence, IRR is 17.15%


