When you do this, the previous value is added first, the column name is changed to “Value,” and the subsequent values are added independently and labeled appropriately. The Cumulative Average is useful for calculating the grouped values, such as the total daily product sales. Power BI enables you to calculate the cumulative average of values over time by using the “Add Values” to a single column on the Worksheet tab (available only for Excel) or starting with a single value on the Column tab. We at **Enterprise DNA** provide a platform for helping data analysts to learn Power BI through providing real-time courses and a community forum.

## What To Learn About Cumulative Averages?

### 1. Calculate Cumulative Average in Power BI By Using “Add Values to a Single Column.”

The first way to calculate the cumulative average in Power BI is by using the “Add values to a single column” option, which can be accessed by clicking on the value name (column A) and then clicking on the “Add Values” button. After that, click on the green plus sign beside each column and choose whether each value is positive or negative, then, you need to rename the column, and finally, you can drag it into another worksheet.

### 2. Calculate the Cumulative Average in Power BI By Starting With A Single Value

Another way to calculate the Cumulative Average in Power BI is to start with a single value (predefined or individually entered value) and then calculate for each subsequent value. To do that, you can drag the “Value” column from another worksheet by clicking on it and then dragging it into the worksheet from which you wish to calculate the average.

After that, you need to click on the “Add value” button. When you do this, the previous value is added first, the column name is changed to “Value,” and the subsequent values are added independently and labeled appropriately.

After that, you can calculate the Cumulative Average using any of the methods mentioned above, using the “Calculate” option from the toolbar or typing in the formula bar.

### 3. Advanced Method To Calculate Cumulative Average In Power BI

If you are familiar with the DAX formula, there is an advanced method that you can use to calculate the cumulative average in Power BI. In this method, you can also create a calculated column other than using the formula bar to type in the formula. We are going to use the below data set as an example of this method:

From this data set, we want to display the Cumulative Average and include a negative sign before the value when calculating the cumulative average. In the first step of the calculation, we will use the below DAX formula to calculate the average value:

**Average = Sum (D1) / Count (*)**

As you can see in the formula bar, we are calculating the sum and then dividing it by a total number of values, and the above formula also includes a minus sign before all values. The second part of this method is to create a new calculated column that uses the above formula.

After this, you need to sort the data set based on the values in this column and then drag it into another worksheet.

### Benefits of Cumulative Average in Power BI

- It is a simple way to calculate the average of grouped values
- It is easy to calculate the Cumulative Average using Power BI.
- The calculation is done automatically without any further manipulation.
- You can add more data sets provided they use a consistent value for Average and Cumulative Average columns.
- Using the advanced method, the formula can be reused in other worksheets or datasets with minor modifications (if required).
- If you want to calculate the Cumulative Average for the value-added ;after an Axis, you can use a formula to determine the time step.
- You can also use this method to calculate the number of days since a particular date in Power BI.
- You can also use this method to calculate the number of days until a particular date in Power BI.

## Conclusion:

Enterprise DNA provides a platform for helping data analysts to learn. Power BI through providing real-time courses and a community forum. Within the forum, you can ask questions to help your peers or join in the conversation. If you want to learn Power BI, we also have a course for Beginners & Advanced which is one of the most useful calculated columns on any Power BI dashboard. It is a simple way to calculate the average of grouped values. you can use this formula in various scenarios. You can use this method to calculate the **cumulative average** for days since a particular date in Power BI by using the calculation to get years multiplied by 365 days in a year and then multiply it with the value-added after 6 from that particular axis. To know more, you can contact us Now!