This report presents a comprehensive analysis of business decision-making processes, focusing on Blackfriars Restaurant's potential expansion into the London market. The report begins by exploring data collection methods, differentiating between primary and secondary sources, and detailing survey methodologies and sampling frameworks. It then delves into statistical analysis, including calculations of mean, median, mode, measures of dispersion, percentiles, and correlation to evaluate the restaurant's sales performance. The findings are presented graphically and interpreted to provide insights into customer behavior and market trends. Furthermore, the report includes a project plan and discusses financial tools relevant to decision-making. The overall aim is to provide a strategic framework for Blackfriars Restaurant to make informed decisions regarding its expansion, considering various factors influencing consumer choices and market dynamics.