Sierra Company is considering a long-term investment project called ZIP ZIP will require an investment of $258,240. It will have a useful life of four years and no salvage value. Annual cash inflows would increase by $172,160, and annual cash outflows would increase by $88,232. The company's required rate of return is 12%. Calculate the internal rate of return on this project. (Round answer to 1 decimal place, e.g. 12.4%.) Internal rate of return % Identify whether the project should be accepted or rejected. The project should be