I need help breaking down the calculations to the result in the items in the attachments below.

Problem 10-19A Using net present value and internal rate of return to evaluate investment opportunities Dwight Donovan, the president of Donovan Enterprises, is considering two investment opportunities. Because of limited resources, he will be able to invest in only one of them. Project A is to purchase a machine that will enable factory automation; the machine is expected to have a useful life of four years and no salvage value. Project B supports a training program that will improve the skills of employees operating the current equipment. Initial cash Page 472 expenditures for Project A are $400,000 and for Project B are $ 160,000. The annual expected cash inflows are $126,000 for Project A and $52,800 for Project B. Both investments are expected to provide cash flow benefits for the next four years. Donovan Enterprises' desired rate of return is 8 percent. Required a. Compute the net present value of each project. Which project should be adopted based on the net present value approach? Round your computations to two decimal points. b. Compute the approximate internal rate of return of each project. Which one should be adopted based on the internal rate of return approach? Round your rates to six decimal points. c. Compare the net present value approach with the internal rate of return approach. Which method is better in the given circumstances? Why? Analyze the results of the net present value calculations and the significance of these results, supported with examples. Determine which project should be adopted based on the net present value approach and provide a rationale for your decision. Analyze the results of the internal rate of return calculation and the significance of these results, supported with examples. Determine which project should be adopted based on the internal rate of return approach and provide a rationale for your decision. Determine the preferred method in the given circumstances and provide reasoning and details to support the method selected. Synthesize results of analyses and computations to determine the best investment opportunity to recommend to the president of Donovan Enterprises