Assuming an initial investment of $2,500 on 12/31/13, what is the IRR assuming all cash flows occur at the end of each period? Back Next Year ending 12/31/2015 12/31/2016 1,000.0 1,500.0 12/31/2014 1,000.0 Free Cash Flow 12/31/2017 1,250.0 12/31/2018 1,500.0