Overview of this book

DAX provides an extra edge by extracting key information from the data that is already present in your model. Filled with examples of practical, real-world calculations geared toward business metrics and key performance indicators, this cookbook features solutions that you can apply for your own business analysis needs. You'll learn to write various DAX expressions and functions to understand how DAX queries work. The book also covers sections on dates, time, and duration to help you deal with working days, time zones, and shifts. You'll then discover how to manipulate text and numbers to create dynamic titles and ranks, and deal with measure totals. Later, you'll explore common business metrics for finance, customers, employees, and projects. The book will also show you how to implement common industry metrics such as days of supply, mean time between failure, order cycle time and overall equipment effectiveness. In the concluding chapters, you'll learn to apply statistical formulas for covariance, kurtosis, and skewness. Finally, you'll explore advanced DAX patterns for interpolation, inverse aggregators, inverse slicers, and even forecasting with a deseasonalized correlation coefficient. By the end of this book, you'll have the skills you need to use DAX's functionality and flexibility in business intelligence and data analytics.
Preface
Thinking in DAX
Tangling with Time and Duration
Transforming Text and Numbers
Evaluating Employment Measures
Processing Project Performance
Calculating Common Industry Metrics
Solving Statistical and Mathematical Formulas
Applying Advanced DAX Patterns
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Computing gross margin, revenue, and cost

Gross margin is an important financial metric that represents the percentage of revenue retained after direct costs are incurred. However, there are times when businesses understand their costs and desired gross margin and thus need to determine how much revenue they should be making for their goods and services. Conversely, there are also times where businesses understand how much revenue they can make, as well as their desired gross margin, and thus need to understand their maximum cost. The latter scenario is fairly common in the services sector when attempting to understand the maximum hourly cost of a resource for a given revenue and gross margin.

The formula for gross margin is as follows:

This recipe demonstrates how to calculate gross margin when given a certain revenue and cost. In addition, this recipe demonstrates how to calculate...