4.1 REQUIRED Study the information given below and calculate the following: 4.1.1 Payback period (in years, months and days) (3 marks) 4.1.2 Net Present Value (5 marks) 4.1.3 Internal Rate of Return (expressed to two decimal places). (Note: Your answer must include the interpolation.) (6 marks) INFORMATION Eva Limited is considering the purchase of a machine. The company desires a minimum required rate of return of 12%. The machine will cost R2 200 000 plus installation costs of R200 000 and is expected to have a useful life of six years. It is anticipated that the machine will have a salvage value of R100 000. The machine is expected to increase revenues by R800 000 per year but will require the employment of two new machine operators at R100 000 per year for each operator, and it will also require maintenance and repairs averaging R50 000 per year. Depreciation is estimated to be R400 000 per year.