This report provides a comprehensive financial analysis of Sainsbury's and TESCO, focusing on their performance through ratio analysis, working capital, and cash flow analysis. It begins with an introduction to financial analysis, explaining its importance in measuring business operations. The main body delves into vertical and horizontal ratio analysis, examining profitability (gross profit and net profit), liquidity (current and quick), and solvency (debt-equity and interest coverage) ratios for both companies from 2015 to 2018. The report interprets these ratios, comparing the companies' performances and identifying trends. It also includes an analysis of working capital and cash flow. The conclusion summarizes the findings, highlighting key insights into the financial health and operational efficiency of Sainsbury's and TESCO. References and appendices are included to support the analysis.