ENGINEERING ECO ANALYSIS W/STUDY GUIDE
ENGINEERING ECO ANALYSIS W/STUDY GUIDE
13th Edition
ISBN: 9780190693053
Author: NEWNAN
Publisher: Oxford University Press
Question
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Chapter 8, Problem 9P
To determine

i.

Choice Table for interest rate from 0% to 100%.

Expert Solution
Check Mark

Answer to Problem 9P

Till 13% interest rate, Combined stores are beneficial

From 13% to 100%, South end store is profitable.

Explanation of Solution

Given:

Annual Profit = $370000

Leasing Period = 5 years

Expenditure on store fixtures = $1200000

Combined Profit = $560000.

Calculation:

Formula: NPV = R x {[1 − (1+i)- n] / i} + [Salvage value / (1+i)n] − Initial Investment.

R is the net cash inflow expected to be received in each period;

i is the required rate of return per period;

n are the number of periods during which the project is expected to operate and generate cash inflows.

For illustration, let’s assume that the interest rate is 1% and calculate the NPV for combined stores:

NPV = $560,000×{[1  ( 1+0.01)5]0.01} + ($1,000,0001.015)  $1,200,000 = $2,469,387.18

Year Cash Flow from South end Combined Cash Flow
0 0 -1200000
1 370000 560000
2 370000 560000
3 370000 560000
4 370000 560000
5 370000 1560000
Interest Rate NPV for South End NPV for Combined stores
0% $1,850,000.00 $2,600,000.00
1% $1,795,769.56 $2,469,387.18
2% $1,743,980.02 $2,345,268.13
3% $1,694,491.66 $2,227,244.81
4% $1,647,174.26 $2,114,947.61
5% $1,601,906.37 $2,008,033.10
6% $1,558,574.60 $1,906,181.89
7% $1,517,073.05 $1,809,096.74
8% $1,477,302.71 $1,716,500.82
9% $1,439,170.97 $1,628,136.09
10% $1,402,591.10 $1,543,761.91
11% $1,367,481.90 $1,463,153.66
12% $1,333,767.19 $1,386,101.53
13% $1,301,375.57 $1,312,409.44
14% $1,270,239.96 $1,241,894.01
15% $1,240,297.39 $1,174,383.59
16% $1,211,488.65 $1,109,717.46
17% $1,183,758.08 $1,047,745.00
18% $1,157,053.28 $988,324.99
19% $1,131,324.91 $931,324.91
20% $1,106,526.49 $876,620.37
21% $1,082,614.20 $824,094.52
22% $1,059,546.71 $773,637.52
23% $1,037,285.00 $725,146.08
24% $1,015,792.23 $678,523.01
25% $995,033.60 $633,676.80
26% $974,976.19 $590,521.24
27% $955,588.89 $548,975.08
28% $936,842.24 $508,961.70
29% $918,708.35 $470,408.80
30% $901,160.81 $433,248.14
31% $884,174.57 $397,415.25
32% $867,725.90 $362,849.23
33% $851,792.28 $329,492.50
34% $836,352.32 $297,290.57
35% $821,385.73 $266,191.90
36% $806,873.22 $236,147.69
37% $792,796.46 $207,111.70
38% $779,138.04 $179,040.13
39% $765,881.36 $151,891.43
40% $753,010.65 $125,626.23
41% $740,510.89 $100,207.12
42% $728,367.78 $75,598.62
43% $716,567.67 $51,767.02
44% $705,097.58 $28,680.30
45% $693,945.10 $6,308.00
46% $683,098.42 -$15,378.80
47% $672,546.25 -$36,407.67
48% $662,277.81 -$56,804.80
49% $652,282.82 -$76,595.14
50% $642,551.44 -$95,802.47
51% $633,074.27 -$114,449.42
52% $623,842.33 -$132,557.59
53% $614,847.02 -$150,147.54
54% $606,080.11 -$167,238.91
55% $597,533.73 -$183,850.44
56% $589,200.35 -$200,000.00
57% $581,072.73 -$215,704.67
58% $573,143.97 -$230,980.76
59% $565,407.43 -$245,843.85
60% $557,856.75 -$260,308.84
61% $550,485.83 -$274,389.98
62% $543,288.83 -$288,100.89
63% $536,260.12 -$301,454.62
64% $529,394.32 -$314,463.64
65% $522,686.24 -$327,139.90
66% $516,130.92 -$339,494.84
67% $509,723.57 -$351,539.44
68% $503,459.61 -$363,284.20
69% $497,334.62 -$374,739.19
70% $491,344.34 -$385,914.07
71% $485,484.70 -$396,818.12
72% $479,751.76 -$407,460.22
73% $474,141.74 -$417,848.91
74% $468,650.99 -$427,992.38
75% $463,276.02 -$437,898.49
76% $458,013.42 -$447,574.82
77% $452,859.96 -$457,028.63
78% $447,812.48 -$466,266.88
79% $442,867.97 -$475,296.31
80% $438,023.51 -$484,123.36
81% $433,276.27 -$492,754.24
82% $428,623.55 -$501,194.92
83% $424,062.71 -$509,451.17
84% $419,591.25 -$517,528.51
85% $415,206.70 -$525,432.28
86% $410,906.71 -$533,167.60
87% $406,689.01 -$540,739.44
88% $402,551.38 -$548,152.55
89% $398,491.71 -$555,411.52
90% $394,507.93 -$562,520.80
91% $390,598.07 -$569,484.66
92% $386,760.18 -$576,307.20
93% $382,992.42 -$582,992.42
94% $379,292.99 -$589,544.15
95% $375,660.14 -$595,966.10
96% $372,092.19 -$602,261.83
97% $368,587.51 -$608,434.80
98% $365,144.51 -$614,488.36
99% $361,761.67 -$620,425.72
100% $358,437.50 -$626,250.00

Conclusion:

Till 13% interest rate, Combined stores are beneficial

From 13% to 100%, South end store is profitable.

To determine

ii.

Rate of return if North-end store is open.

Expert Solution
Check Mark

Answer to Problem 9P

Rate of return is 13.28%.

Explanation of Solution

Given:

Annual Profit = $370000

Leasing Period = 5 years

Expenditure on store fixtures = $1200000.

Combined Profit = $560000.

Calculation:

Return from North End − Here, we need to calculate the IRR for North end store alone.

Formula for IRR: 0 = -Initial Investment + [(Cash Inflow1)/(1+IRR)1] + [(Cash Inflow2)/(1+IRR)2] +

[(Cash Inflow3)/(1+IRR)3].....+ [(Cash Inflown)/(1+IRR)n]

Cash flow from North End from Year 1 to 4 =  $560,000  $370,000 = $190,000

Cash flow from North End in Year 5 =  $190,000 + $1,000,000 = $1,190,000

Initial Investment = $1,200,000

IRR:

0 = $1,200,000 + [($190,000)(1+IRR)] + [($190,000)( 1+IRR)2] + [($190,000)( 1+IRR)3] + [($190,000)( 1+IRR)4] + [($190,000)( 1+IRR)5] = 13.28%.

Conclusion:

IRR = 13.28%.

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