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Internal Rate of Return Method
The internal rate of return method is used by King Bros.
Construction Co. in analyzing a capital expenditure proposal that
involves an investment of $73,600 and annual net cash flows of
$10,000 for each of the 10 years of its useful life.
Present Value of an Annuity of $1 at Compound
InterestYear6%10%12%15%20%10.9430.9090.8930.8700.83321.8331.7361.6901.6261.52832.6732.4872.4022.2832.10643.4653.1703.0372.8552.58954.2123.7913.6053.3522.99164.9174.3554.1113.7843.32675.5824.8684.5644.1603.60586.2105.3354.9684.4873.83796.8025.7595.3284.7724.031107.3606.1455.6505.0194.192
a. Determine a present value factor for an annuity of $1
which can be used in determining the internal rate of return. If
required, round your answer to three decimal places.
b. Using the factor determined in part (a) and the present
value of an annuity of $1 table above, determine the internal rate
of return for the proposal.
%
Answer a. | Present Value Factor for an Annutiy of $1 | ||||||
At IRR, | |||||||
PV of Inflows | = | PV of Outflows | |||||
Cash inflows pa*PVAF(x,10) | = | 73600 | |||||
10000*PVAF | = | 73600 | |||||
PVAF(x,10) | = | 73600/10000 | |||||
PVAF(x,10) | = | 7.360 | |||||
Therefore, present value factor for an annuity of $1 which can be used in determining the internal rate of return is 7.360 | |||||||
Answer b. | Internal Rate of Return | ||||||
Using the table given above, | |||||||
Interest Rate at which the annuity for 10 years is 7.360 shall be 6% | |||||||
Years | 6% | 10% | 12% | 15% | 20% | ||
1 | 0.9434 | 0.9091 | 0.8929 | 0.8696 | 0.8333 | ||
2 | 0.8900 | 0.8264 | 0.7972 | 0.7561 | 0.6944 | ||
3 | 0.8396 | 0.7513 | 0.7118 | 0.6575 | 0.5787 | ||
4 | 0.7921 | 0.6830 | 0.6355 | 0.5718 | 0.4823 | ||
5 | 0.7473 | 0.6209 | 0.5674 | 0.4972 | 0.4019 | ||
6 | 0.7050 | 0.5645 | 0.5066 | 0.4323 | 0.3349 | ||
7 | 0.6651 | 0.5132 | 0.4523 | 0.3759 | 0.2791 | ||
8 | 0.6274 | 0.4665 | 0.4039 | 0.3269 | 0.2326 | ||
9 | 0.5919 | 0.4241 | 0.3606 | 0.2843 | 0.1938 | ||
10 | 0.5584 | 0.3855 | 0.3220 | 0.2472 | 0.1615 | ||
7.3601 | 6.1446 | 5.6502 | 5.0188 | 4.1925 | |||