This report provides a comprehensive financial analysis of three UK gambling companies—William Hill, Ladbrokes, and Paddy Power—using financial ratio analysis to assess their profitability, liquidity, operational efficiency, and gearing. The analysis covers the period from 2014 to 2016, comparing key financial ratios such as gross profit margin, EBIT margin, ROE, current ratio, quick ratio, net assets turnover, interest cover, collection period, credit period, and gearing ratio. The report identifies Paddy Power as the best-performing company due to its superior profitability, liquidity, and operational efficiency, while Ladbrokes is identified as the poorest-performing company, with recommendations for improving its profitability, efficiency, and liquidity. Additionally, the report outlines the key stages in the capital investment decision-making process and explains the key methods of investment appraisal, including payback period, accounting rate of return, net present value, and internal rate of return.