I am having trouble with this assignment, not really sure where to begin.

A company is considering an investment of $1.4 million in a project that has a seven-year life.The company has estimated its discount rate at 12%.Details of the sales and costs associated with the project are as follows:

Sales volume 250,000 units per year

Sales price $4 per unit

Costs

Direct materials (4 kg at $.40 per kg) $1.60 per unit

Direct labor (0.1 hours at $8 per hour) $0.80 per unit

Overhead $330,000 per year

Note: The annual overhead includes $200,000 per year depreciation on the asset.It also includes apportioned fixed overhead of a further $50,000 per year.

A.Calculate the net present value of the project.Provide a commentary on the discounting process and on the net present value that you calculated. HOW DO I DO THIS? CAN YOU PLEASE GIVE ME AN EXAMPLE OF A, B & C

B.Carry out a sensitivity analysis on the five variables of this project.Include the life of the project and the discount rate.Identify what you consider the most critical variable and advise management what they should do, if anything, before adopting the new project.

C.Advise the company on whether it should proceed with the project and provide reasons for your advice.