Answer:
6.67 years
Step-by-step explanation:
Payback period calculates the amount of the time it takes to recover the amount invested in a project from its cumulative cash flows
Amount invested = $-545,000
Total cash flows = $502,000
In the first year, $-545,000 + $99,000 = $-446,000 is recovered.
In the second year, $-446,000 + 91,000 = $-355,000 is recovered
In the third year , $-355,000 + $89,000 = $-266,000 is recovered
In the fourth year, $-266,000 + $78,000 = $-188,000 is recovered
In the fifth year, $-188,000 + $75,000 = $-113,000 is recovered
In the sixth year, $-113,000 + $70,000 = -43,000 is recovered
I'm the 7th year, -43,000 + 64,000 = $21,000 is recovered
The total amount in recovered between the 6th and 7th year.
Pay back period = 6 years + 43,000 / 64,000 = 6.67 years
I hope my answer helps you