A redevelopment project is planned in the industrial zone of the city. In this case, where immediate investment is required, the expectations from the company that will take over the project are as follows. It should lift existing buildings over a four-year period and invest 8.400.000 $ in new construction at the end of the fourth year. It will collect all revenues and is expected to pay all expenses for a 10-year period. Meanwhile, all projects and properties will return to the city. Use the following data for the net cash flow values. EOY Net Cash Flow ($) 600.000 400.000 100.000 -8.400.000 584.000 604.000 624.000 644.000 664.000 1684.000 a) Generate the PW as the interest rate is not given you should determine whether multiple IRRS exist. b) According to the result that you obtain in part (a), check if there exist multiple IRR; then use the ERR method. In this part, to evaluate the external rate of return you should use E= 5% per year