Answer:
The internal rate of return is 11%, the investment will be accepted.
Payback Period is 5
Explanation:
We use excel or a spreadsheet to calculate this ratio. See document attached.
We must use a cash flow to solve this problem.
At moment 0 we have the investment cost , in this case $436,900. From period 1 to period 6, we have incomes o benefits of $103,273. Then, we calculate the Net cash flow that is the difference between benefits and cost.
We use all the result (positive and negative) in Net cash flow to get the IRR.
The decision rules are 3:
Net Present Value (NPV)
Internal Rate of Return (IRR)
Payback Period