This essay provides a comprehensive analysis of business decision-making processes, focusing on the application of investment appraisal techniques. The essay begins with an introduction to the decision-making process within a business context, followed by a detailed calculation of the payback period and Net Present Value (NPV) for two hypothetical projects, Project A and Project B. The main body of the essay compares and contrasts these two techniques and analyses the financial and non-financial factors influencing business decisions, including return on investment, cost-benefit analysis, equipment standardization, and human and social factors. The essay concludes by summarizing the key findings and emphasizing the importance of considering both financial and non-financial aspects when evaluating investment opportunities. The essay references relevant academic literature to support its analysis and conclusions.