"The initial investment for a project is $91,000. The project will last for 5 years and can be salvaged for $7,280 at the end of 5 years. The annual expenses for the project are $5,500 in year 1 and increase at an annual rate of 5% in each year of the project. Assume the annual revenue remains the same in each of the 5 years. What does the annual revenue need to be in order for the internal rate of return of the project to equal 24.8%? "
Internal rate of return (IRR) is 24.8%, which means that Present value (PV) of all costs must equal PV of revenues. PV of costs, discounted at 2.8%, is computed as follows. In year 5, salvage value is deducted from cost.
PV factor for year N = (1.248)-N
Year | Cost ($) | PV Factor @24.8% | Discounted Cost ($) |
(A) | (B) | (A) x (B) | |
0 | 91,000 | 1.0000 | 91,000 |
1 | 5,500 | 0.8013 | 4,407 |
2 | 5,775 | 0.6421 | 3,708 |
3 | 6,064 | 0.5145 | 3,120 |
4 | 6,367 | 0.4122 | 2,625 |
5 | -595 | 0.3303 | -196 |
PV of Cost ($) = | 1,04,663 |
If annual revenue be R, then
$104,663 = R x PVIFA(24.8%, 5)
$104,663 = R x 2.7003**
R = $104,663 / 2.7003
R = $38,759.77 ~ $38,760
**PVIFA(r%, N) = [1 - (1 + r)-N] / r
PVIFA(24.8%, 5) = [1 - (1.248)-5] / 0.216 = (1 - 0.3303) / 0.248 = 0.6697 / 0.248 = 2.7003
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