For the NCF shown below, find the external rate of return (EROR) i' by the MIRR method if: MARR = 6%, borrowing rate ib = 8%, investment rate ii = 11% Year 0 1 2 Net Cash Flow ($) 1995 -649 -8231 3 6377 Note that the given MARR value is not really needed in this calculation. The MARR value is only to be compared with the i' value that you are asked to calculate. If i'>MARR then the problem is economically justified using the EROR approach. NOTE: Give your answer as a percentage. For example, if the answer is 6.52%, you have to enter 6.52 as the answer (without the % symbol)