Exercise 24-20A (Algo) IRR for investment using Excel LO P4 Optitux is considering investing in an automated manufacturing system. The system requires an initial investment of 56.0 million, has a 20-year life, and will have zero salvage value. If the system is implemented, the company will save $820,000 per year in direct labor costs. The company requires a 11% return from its investments. Using Excel, compute the internal rate of return for the proposed investment. (Round your answer to 2 decimal places.) Answer is complete but not entirely correct