In: Finance
An investment has an installed cost of $521,800. The cash flows over the four-year life of the investment are projected to be $227,850, $244,450, $211,110, and $159,820.
At what discount rate is the NPV just equal to zero? (Round the final answer to 2 decimal places.)
We know that at IRR, NPV is 0
Computation of IRR.
Let us assume few discount rate to find out at which rate NPV is 0.
Year | Cash flows | Disc @ 10% | Discounted Cash flows | Disc @ 15% | Discounted Cash flows | Disc @ 25% | Discounted Cash flows | Disc @ 26% | Discounted Cash flows |
0 | ($521,800) | 1 | ($521,800) | 1 | ($521,800) | 1 | ($521,800) | 1.0000 | ($521,800) |
1 | $227,850 | 0.909091 | $207,136.36 | 0.869565 | $198,130 | 0.833333 | $189,875 | 0.7937 | $180,833 |
2 | $244,450 | 0.826446 | $202,024.79 | 0.756144 | $184,839 | 0.694444 | $169,757 | 0.6299 | $153,975 |
3 | $211,110 | 0.751315 | $158,610.07 | 0.657516 | $138,808 | 0.578704 | $122,170 | 0.4999 | $105,535 |
4 | $159,820 | 0.683013 | $109,159.21 | 0.571753 | $91,378 | 0.482253 | $77,074 | 0.3968 | $63,409 |
Total | $155,130 | $91,356 | $37,076 | ($18,048) |
We know that at IRR, NPV is 0.
Given in the Question NPV should be 0.
From the Table we can observe that IRR lies between 25% and 26%
We can find the exact rate by using interpolation method
L.R +[ { NPV at L.R * ( H.R - L.R)}/ ( NPV at L.R - NPV at H.R) ]
Here L.R = Lower rate and H.R = Higher ratee
= 25% +[{ $ 37076*( 26% - 25%) }/ ( $ 37076-( - $ 18048) ]
= 25% + [ $ 37076/ ( $ 55124)]
= 25% + 0.6725%
=25.6725%
Hence at 25.6725% discount rate NPV is equal to 0.
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