The assignment discusses different investment appraisal techniques, including the average rate of return method and risk management techniques such as expected values, decision tree, maximax, minimax, and sensitivity analysis. The average rate of return method is used to calculate the profitability of a project, while risk management techniques are employed to evaluate the uncertainty associated with investing. The report highlights the advantages and limitations of each technique, including the ease of calculation and provision of indication related to profitability, as well as issues related to deprecation and scrap value and the lack of focus on time value of money. Based on the scenario provided, it is recommended that the global manufacturing company invest in Machine B due to its higher rate of return.