AceAce Hardware is adding a new product line that will require an investment of $ 1 comma 418 comma 000$1,418,000. Managers estimate that this investment will have a 10-year life and generate net cash inflows of $ 320 comma 000$320,000 the first year, $ 290 comma 000$290,000 the second year, and $ 230 comma 000$230,000 each year thereafter for eight years. Compute the payback period. Round to one decimal place. The payback is nothing years.