EncryptCo is considering a project with a $50,000 first cost that returns $12,000 per year. Assume that it will have a salvage value of $6500 at the end of its service life. The MARR is 12 per cent. (a) Calculate the payback period for this project. (3 marks) (b) Calculate the discounted payback period for this project. Use Excel to do this and include the Excel output in your Assignment report.(3 marks)