Having difficulties solving this, as I do not know how to find the total cash inflow. However, I know that it is total cash inflow/asset life in yrs to find the annual net cash flow, however, I am trying to find the ROR (rate of return)

Walken Hardware is adding a new product line that will require an investment of $1,460,000. Managers estimate that this investment will have a 10-year life and generate net cash inflows of $330,000 the first year, $265,000 the second year, and $250,000 each year thereafter for eight years. The investment has no residual value. Compute the ARR for the investment. First, enter the formula, then compute the ARR of the new product line. (Enter your answer as a percent rounded to two decimal places.) Accounting Average annual operating income from asset Initial investment rate of return %