This report conducts an investment appraisal for DDK plc., comparing Project A and Project B using the payback period and net present value (NPV) methods. The analysis includes detailed calculations of payback periods and NPVs for both projects, considering cash flows and discounting factors. The report concludes that Project B is the more favorable investment due to its shorter payback period and higher NPV, despite requiring a larger initial investment. Furthermore, the report discusses the influence of various financial factors, such as interest rates, inflation, and income tax, along with non-financial factors including political, environmental, and ethical considerations, on business decision-making. The findings provide recommendations for DDK plc. to make informed investment decisions and manage their liquidity effectively.