What should Benny use to analyze this business data?

Benny should use a combination of data analysis tools such as Excel for basic data manipulation and visualization, and more advanced software like Tableau or Power BI for in-depth analytics and interactive dashboards. Additionally, statistical analysis software like R or Python with libraries such as Pandas and Matplotlib can help in performing complex analyses and generating insights. Depending on the complexity of the data, he may also consider using SQL for database management and querying.