Internal Rate of Return A project is estimated to cost $225,225 and provide annual net cash flows of $65,000 for four years. Present Value of an Annuity of $1 at Compound Interest Determine the internal rate of return for this project, using the Present Value of an Annuity of $1 at Compound Interest table shown above. % Feedback * Check My Work Divide the estimated cost by the annual net cash flow. In the present value of annuity for $1 table, find the factor closest to this amount for four periods