An investment that Kevin is considering offers the following cash flows. Year 1 Initial investment of $120,000 Year 2 Inflow of $25,300 Year 3 Inflow of $17,500 Year 4 Additional investment of $15,000 Year 5 Inflow of $18,900 Year 6 Inflow of $32,600 Year 7 Additional investment $11,900 Year 8 Inflow of $61,050 Year 9 Inflow of $41,750 Year 10 Sale proceeds of $33,000 What is the internal rate of return (IRR) that this investment offers if all cash flows occur at the end of each period?