I don't understand how to the excel part of the assignment

For this assignment, refer to the scenario located in "Problems - Series A" section 10-19A of Ch. 10, "Planning for Capital Investments" of Fundamental Managerial Accounting Concepts. This scenario puts you at task as a Senior Accountant for Donovan Enterprises to identify the preferred method and best investment opportunity for the company.

Read the scenario in the textbook and complete the activity below.

Use Excelshowing all work and formulasto compute the following:

oCompute the net present value of each project.Round your computations to 2 decimal points.

oCompute the approximate internal rate of return for each project. Round your rates to 6 decimal points

"Problems - Series A" section 10-19A of Ch. 10, "Planning for Capital Investments" of Fundamental Managerial Accounting Concepts.

Dwight Donovan the president of Donovan Enterprises is considering two investment opportunities. Because of the limited resources e 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 usefil life of gour years and no salvage value. Project B supports a training program that will improve the skills of employees annual expected cas inflows are $126,000 for project A and %52,8000 for Project B. Both investments are expected to provide cash flow benefits for the next four years.Donovan Enterprises desires rate of return is 8%.

a) NPV of A $17,328.00

b) Rate of return of B 12%