Answer:
initial investment = $500,000
10 cash flows of $70,000
Present value of cash flows = 5.65022 * $70,000 = $395,515.40
NPV = -$500,000 + $395,515.40 = -$104,484.60
The project should be rejected.
In order to approve the project, the cash flows should = $500,000 / 5.65022 = $88,492.13. With these cash flows the NPV = $0.