Mandy is considering investing in an opportunity that would require an upfront cost of $500 but would pay $200 per year for each of the next 4 years. If Mandy chooses to invest in this opportunity, what would be the IRR? Click here to access the TVM Factor Table calculator. % Carry all interim calculations to 5 decimal places and then round your final answer to 1 decimal place. The tolerance is \pm 0.5 . Should Mandy invest in this opportunity if her personal MARR is 15%