Hunter Security & Surveillance Systems that manufactures products to apply biometric, surveillance, and satellite technologies, started new advertising campaigns that resulted in the cash flows shown in the table below. Calculate unique external rate of return (EROR) values using the Return on Investment Capital (ROIC) method with an investment rate of 30% per year, If the MARR is 10%, find that if companies advertising campaign was worthy or not. Year 0 1 2 3 4 NCF, $ 2000 1200 -4000 -3000 2000