Answer:
Please check explanations for answer
Explanation:
Here, we want to prove that the ROI is not 9 percent per annum
The amount spent buying the item is $800
Now, there is $60 payment per year for 7 years
The total amount received as the total of payment per year after the 7 years will be;
7 * 60 = $420
Now, instead of the $800 paid initially, $1000 was returned as the principal
What this mean is that there is an extra $200 gain including the $420 that was paid earlier
So the total amount of gain on the investment is $200 + $420 = $620
Now, we proceed to calculate the percentage this was, relative to the amount invested
That would be;
620/800 * 100%
= 77.5%
So there was a 77.5% ROI
so the yearly return on this will be;
77.5%/7 = 11.07 which is approximately 11%
So the ROI is 11% and not 9%
