Use the ERR method to evaluate the economic worth of the diagram shown below. The value of the extemal reinvestment rate, E, is 10% per year. The MARR = 13% per year, Click the icon to view the diagram for cash flows. Click the icon to view the interest and annuity tablo for discrete compounding when the MARR is 10% per yoar. Click the icon to view the interest and annuity table for discrete compounding when the MARR is 13% per year. The ERR of the investment discussed is \%. (Round to one decimal place.)