Comparing all methods. Given the following after-tax cash flow on a new toy for Tyler's Toys, find the project's payback period, NPV, and IRR. The appropriate discount rate for the project is 10%. If the cutoff period is 6 years for major projects, determine whether management will accept or reject the project under the three different decision models. Initial cash outflow: $13,900,000 Years one through four cash inflow: $3,475,000 each year Year five cash outflow: $1,390,000 Years six through eight cash inflow: $598,333 each year