This report evaluates investment appraisal techniques, including Payback Period, Accounting Rate of Return (ARR), Net Present Value (NPV), and Internal Rate of Return (IRR), to advise Dolapo Plc on selecting a machine model (Dysn or Texla). It recommends Dysn model 1 based on its positive NPV, higher IRR and ARR, and shorter payback period. The report also assesses Tesco Plc's performance using accounting ratios over three years, highlighting improvements in gross profit margin and return on assets, while noting concerns about current and liquid ratios. Limitations of accounting ratios and factors affecting Tesco's performance, such as competitor innovation and underperforming stores, are also discussed. The analysis concludes that Dolapo Plc should adopt Dysn model 1 for profitability and that Tesco is showing signs of growth despite certain financial challenges.