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Courses/Office Productivity/MS Excel

Excel University Lesson 503: Data-Driven Sales Strategy: Optimizing Drone Promotions

Use Excel and Power BI to identify underperforming products and drive year-end sales growth.

Created byJeff Lenning
AdvancedUpdated Sep 21, 2026
Excel University Lesson 503: Data-Driven Sales Strategy: Optimizing Drone Promotions

What You'll Learn

check_circleApply Power Query to clean and unpivot complex inventory and sales datasets
check_circleConstruct relational data models using calendar tables and appropriate cardinality
check_circleDevelop explicit DAX measures to track inventory and sales performance
check_circleDesign effective time-series visualizations to communicate data-driven insights

About This Course

This course provides a practical framework for analyzing inventory and sales data to inform promotional decision-making. Participants learn to assess business needs, browse and transform raw data, and create visual reports that highlight key performance trends. The curriculum covers data cleaning and transformation techniques, the development of relational data models, and the creation of time-series visualizations. By integrating inventory levels with historical sales data, the course demonstrates how to identify specific products that require strategic promotional intervention.

Topics Covered

  • Inventory and sales data transformation
  • Power Query data cleaning techniques
  • Relational data modeling and cardinality
  • Calendar and date table integration
  • Explicit measure creation with DAX
  • Time-series line chart visualization
  • Small multiples for comparative analysis
  • Power BI service and report publishing

Your Instructor

Jeff Lenning
Jeff Lenning

CPA and Microsoft Certified Trainer

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star1,160 reviews

In his live CPE training sessions, Jeff Lenning CPA has shown thousands of CPAs and accounting professionals across the country how to use Excel to streamline their work and become more efficient. Several publications have featured his Excel articles, including the Journal of Accountancy and California CPA Magazine. After graduating from the University of Southern California, Jeff began his career in the audit practice at Arthur Andersen’s Orange County office. He was a senior financial analyst at Gateway computers and the accounting manager at Interpore Cross International. In 2000, he founded Click Consulting Inc., a technology-consulting firm that specializes in Excel training, consulting, development, and personal coaching. He is a past president of the CalCPA OCLB Chapter, the former chair of the California CPA State Technology Committee, co-chair of the California CPA OCLB Chapter Technology Committee, a board member of the California CPA OCLB Chapter, on the California Society of CPAs Council, and an instructor for the AICPA and the California CPA Education Foundation. A Microsoft Office Certified Excel Expert, he is a nationally recognized speaker and trainer. He was recently recognized with the California CPA Education Foundation's Award for Instructor Excellence.

Credit Information

Is this course eligible for my CPD requirements as a Canadian CPA?

Provincial regulators of CPAs in Canada do not require that independent providers of CPD be approved to offer courses. Instead, individual CPAs are responsible for assessing whether a CPD activity meets their requirements, and may take activities from any source provided those requirements are met.

Every course offered on LearnFormula is delivered by a qualified subject matter expert or learning organization, and advances learning objectives that are relevant to the responsibilities or professional competencies of Canadian CPAs. All activities on LearnFormula are quantifiable in terms of hours, and are also verifiable, in that users receive documented evidence of their attendance via a certificate of completion after finishing a course (and this certificate is stored by LearnFormula indefinitely). Nearly 100,000 Canadian CPAs successfully satisfy their CPD requirements via LearnFormula on an annual basis.

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Frequently Asked Questions

We are a registered provider with 327+ associations and regulatory bodies worldwide. We operate across 29 global markets including Canada, the US, Australia, and the UK. Every course page clearly displays its specific accreditations. Upon completion, you receive a professional certificate that can be validated online. Our certificates include all necessary accreditation details, credit hours, and completion dates, and are formatted specifically to meet the submission requirements of most global regulatory bodies.

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