A project has an initial cost of $52, 125, expected net cash inflows of $12,000 per year for 8 years,
and a cost of capital 12 %. What is
the projects NPV and projects payback period ?
NPV = -$52,125 + $12,000[(1/i)-(1/(i*(1+i)n)]
    = -$52,125 + $12,000[(1/0.12)-(1/(0.12*(1+0.12)8)]
    = -$52,125 + $12,000(4.9676) = $7,486.20.
Payback Period:
$52,125/$12,000 = 4.3438, so the payback is about 4 years
Full Solution
a.     $52,125/$12,000 = 4.3438, so the payback is about 4 years.
       b. Project K's discounted payback period is calculated as follows:
                       Annual         Discounted @12%
          Period     Cash Flows       Cash Flows                      Cumulative
           0       ($52,125)          ($52,125.00)                   ($52,125.00)
           1        12,000              10,714.80                     (41,410.20)
           2        12,000               9,566.40                     (31,843.80)
           3        12,000               8,541.60                     (23,302.20)
           4        12,000               7,626.00                     (15,676.20)
           5        12,000               6,808.80                      (8,867.40)
           6        12,000               6,079.20                      (2,788.20)
           7        12,000               5,427.60                        2,639.40
           8        12,000               4,846.80                       7,486.20
                                           $2,788.20
     The discounted payback period is 6 + $5,427.60 years, or 6.51 years.
     Alternatively, since the annual cash flows are the same, one can divide $12,000 by 1.12 (the discount rate = 12%) to arrive at
     CF1 and then continue to divide by 1.12 seven more times to obtain the discounted cash flows (Column 3 values). The
     remainder of the analysis would be the same.
     c. NPV = -$52,125 + $12,000[(1/i)-(1/(i*(1+i)n)]
         = -$52,125 + $12,000[(1/0.12)-(1/(0.12*(1+0.12)8)]
         = -$52,125 + $12,000(4.9676) = $7,486.20.
     Financial calculator: Input the appropriate cash flows into the cash flow register, input I = 12, and then solve for NPV =
     $7,486.68.
     d. Financial calculator: Input the appropriate cash flows into the cash flow register and then solve for IRR = 16%.
e.   MIRR: PV Costs = $52,125.
        FV Inflows:
     PV                              FV
0 12% 1            2      3      4       5        6       7       8
|          |       |      |       |       |       |        |       |
         12,000   12,000 12,000 12,000 12,000 12,000 12,000 12,000
                                                             13,440
                                                             15,053
                                                             16,859
                                                             18,882
                                                             21,148
                                                             23,686
                                                             26,528
52,125                      MIRR = 13.89%                   147,596
Financial calculator: Obtain the FVA by inputting N = 8, I = 12, PV = 0, PMT = 12000, and then solve for FV = $147,596.
The MIRR can be obtained by inputting N = 8,
PV = -52125, PMT = 0, FV = 147596, and then solving for I = 13.89%.