A project requiring an immediate investment of $150 000 and a further outlay of $40 000 after four years have a residual value of $30 000 after nine years. The project yields a negative net return of $10 000 in Year 1, a zero net return in Year 2, $50 000 per year for the following four years, and $70 000 per year for the last three years.
Find the rate of return for situations below (correct to the nearest 10th of a percent).