This report provides a comprehensive analysis of the business and environmental factors influencing the operations of Marks and Spencer (M&S), a British multinational retailer. It begins with an introduction to the business environment, distinguishing between economic and non-economic factors and their impact on business productivity, profitability, and efficiency. The report then delves into a literature review, examining the effects of economic policies, conditions, and systems, as well as non-economic factors like natural, demographic, and cultural influences on M&S. Furthermore, the report applies PESTLE and SWOT analyses to M&S to assess the political, economic, social, technological, legal, and environmental factors, along with the company's strengths, weaknesses, opportunities, and threats. The analysis considers factors such as Brexit, economic conditions, and cultural trends, offering insights into how these elements shape M&S's strategic decisions and overall performance.