Exercise 11-15 NPV and IRR for automation Investment LO P3, P4 Optilux is considering investing in an automated manufacturing system. The system requires an initial investment of $4 million has 20 year Me, and will have zero salvage value. If the system is implemented, the company will save $660,000 per year in direct lobor costs. The company requires a 12% return from its investments 1. Compute the proposed investment's net present value. 2. Using your answer from part 1, is the investments internal rate of return higher or lower than 12%? Complete this question by entering your answers in the tabs below. Required Required 2 Compute the proposed investment's net present value. Required Required 2 > 1. Compute the proposed investment's net present value. 2. Using your answer from part 1, is the investment's internal rate of return higher or lower than 12857 Complete this question by antaring your answers in the tabs below. Required 1 Required 2 Using your answer from part 1, is the investment's internal rate of return higher or lower than 12% the investment's internal rate of return higher or lower than 12%?