Zion manufacturing, Inc. is considering a new inventory system that will cost $475,000. The system is expected to generate $315,000 in year one, -$35,000 (negative) in year two, $130,000 in year three, and $150,000 in year four. Zion manufacturing's required rate of return is 5%. What is the MIRR (Modified Internal Rate of Return) of this project? 5% 8.93% 6.47% 7.14%