This article covers investment appraisal techniques such as payback period, accounting rate of return, net present value, and internal rate of return. It also evaluates the effects of new proposals on the company's capital structure and critically evaluates the benefits and limitations of various investment appraisal techniques. Additionally, it covers the valuation of Dragon PLC using price/earnings ratio, discounted cash flow method, and dividend valuation method in the context of mergers and takeovers.