The AQA A-level Business Paper 1 (November 2020) evaluates business strategies, financial management, and decision-making. Section A focuses on key concepts like data mining, market share analysis, and lean production. Section B includes calculations of profit variance, turnover percentages, and financial ratio implications. Section C explores the impact of limited liability on stakeholders and HR management challenges in product life cycle stages. Section D discusses the role of research and development in innovation and transitioning from low-cost strategies to differentiation. Keywords: AQA Business, market share, lean production, profit variance, financial ratios, limited liability, differentiation strategy.