5. The following cash flows result from a potential construction contract for Enigma Engineering: i) Receipts of $500,000 at the start of the contract and $1,200,000 at the end of the fourth year. Expenditures of $400,000 at the end of the first year and $900,000 at the end of the second year. A net cash flow of zero at the end of the third year. Calculate the approximate ERR of the project. Check your answer using the Goal Seek method in Excel. Copy the Excel output into your assignment. Should Enigma Engineering pursue this project if its MARR is 12%? (8 marks)