Find the internal rate of return (IRR) for the following series of future cash flows. The initial outlay is $510,400. Year 1: 193,100 Year 2: 187,100 Year 3: 166,500 Year 4: 198,600 Year 5: 174,300 Round the answer to two decimal places in percentage form. (Write the percentage sign in the "units" box) You should use Excel or financial calculator.