Accounting Payback Period Can someone please help :)

Robins Hardware is adding a new product line that will require an investment of $1,476,000. Managers estimate that this investment will have a 10-year life and generate net cash inflows of $310,000 the first year, $300,000 the second year, and $250,000 each year thereafter for eight years. Compute the payback period. Round to one decimal place. The payback in years is 6