
Answers to practice questions
© EWP Go to www.emilewoolfpublishing.com for Q/As, Notes & Study Guides 493
16 Investment appraisal and inflation
(a)
Contributioneachyear = $(15–3.75–2.50)×10,000 = $87,500
Minus:Productionoverheads = $37,500
Contribution = $50,000
Year
Capital
cost
Contribution
Netcash
flow
DCFfactor
at10%
Present
value
$ $ $ $
0 (205,000) (205,000) 1.000 (205,000)
1‐550,000 50,000 3.791 189,500
NPV (15,500)
Ignoring inflation, the project is not worthwhile.
(b) Workings
Year
Sales:
Inflation
at7%
Materials:
Inflation
at5%
Labour:
Inflation
at6%
Overheads:
Inflationat
2%
Net
cash
flow
$ $ $ $ $
Atcurrent
prices
150,000 (37,500) (25,000) (37,500)
1 160,500 (39,375) (26,500) (38,250) 56,375
2 171,735 (41,344) (28,090) (39,015) 63,286
3 183,756 (43,411) (29,775) (39,795) 70,775
4 196,619 (45,582) (31,562) (40,591) 78,884
5 210,382 (47,861) (33,456) (41,403) 87,662
Year
Capital
cost Contribution
Netcash
flow
DCFfactor
at10%
Present
value
$ $ $ $
0 (205,000)(205,000) 1.000 (205,000)
156,37556,375 0.90951,245
263,28663,286 0.82652,274
370,77570,775 0.75153,152
478,88478,884 0.68353,878
587,66287,662 0.62154,438
NPV 59,987
Allowing for inflation in the cash flows, the NPV of the project is about +
$60,000.
The effect of inflation, particularly because selling prices are expected to rise at
a faster rate than costs, is to turn a negative NPV into a positive NPV.
It would be a risky decision to invest in a project, when the project relies for its
positive NPV on estimates of future inflation rates.