IRR method? b. Calculate the PW at MARR = 8% per year at EOY zero for (i) and (ii) and EOY four for (ii) and (iii). How do the IRR and PW methods compare? ' Click the icon to view the cash-flow diagrams. Click the icon to view the interest and annuity table for discrete compounding when the MARR is 8% per year. a. Calculate the IRR for each of the three cash-flow diagrams. (Round to one decimal place.) IRRfor(i)=_1%IRRfor(ii)=%IRRfor(iii)=1%