REQUIRED Use the information provided below to calculate the following: 2.2.1 Internal Rate of Return (expressed to two decimal places). Your answer must include two net present value calculations (using consecutive rates/percentages) and interpolation. (5 marks) (3 marks) 2.2.2 Payback Period (expressed in years, months and days) INFORMATION Mitre Limited is investigating the possibility of purchasing a machine for R180 000. The machine is expected to increase net cash flows by R50 000 per annum for five years.