Based on the information given the payback period is 5.80 years.
Using this formula
Payback period = Net initial investment / Estimated annual cash inflow
Where:
Net initial investment=$2,900,000
Estimated annual cash inflow=$500,000
Let plug in the formula
Payback period=$2,900,000/$500,000
Payback period=5.80 years
Inconclusion the payback period is 5.80 years.
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