Complete Question:
Machine A costs $9,500 and has an annual operating cost of $5,500. Machine B costs $8,000 and has an annual operating cost of $5,800. Each machine has an economic life of 8 years. What is the annual rate of return the additional investment in machine A?
Answer:
IRR is 11.81%
Explanation:
<u><em>We have to find the annual rate of return on the additional investment in machine A.</em></u> The additional investment can also be termed as incremental investment which is $1,500 ($9,500 - $8,000). Furthermore, the additional cost savings of operating machine A is $300 ($5,500 - $5,800). And this cost savings will be during the life span of the machine A.
Now
We can compute IRR, by using Excel as under:
