Power BI AVERAGE, AVERAGEA and AVERAGEX Functions (With DAX Examples)

Power Bi AVERAGE function

A regional sales director once asked me why the “average sale” in their Power BI report didn’t match the number their finance team calculated in Excel. Both were right. Power BI was averaging individual transactions; finance was averaging monthly totals. The fix was one line of DAX: switching from AVERAGE to AVERAGEX. DAX has three … Read more >>>

How to Set Column Width in Power BI Matrix Visual?

Set Fixed Column Width in a Power BI Matrix Visual

When a Power BI matrix squeezes long product names into a narrow column or stretches a short number across half the visual, you need to control the column width yourself. Power BI sizes matrix columns automatically by default, so the first step is turning that off. Power BI Desktop has an “auto-size column width” feature … Read more >>>

How to Set as Total in Power BI Waterfall Chart?

Power BI set as total in waterfall chart

A waterfall chart usually ends with an automatic total, but often you also need a starting total, such as last year’s revenue on the left, or a subtotal in the middle. In this tutorial, I’ll show you how to set a bar as a total in a Power BI waterfall chart, move or remove the … Read more >>>

Power BI Bar Chart Rounded Corners

Power BI Bar Chart Rounded Corners

Power BI still has no rounded corners setting for the bars themselves. I checked again in Power BI Desktop in October 2026: Format visual > Effects > Visual border > Rounded corners only rounds the visual’s outer border. You can still give a bar chart rounded ends without a custom visual by using error bars, … Read more >>>

How to Show Zero Values in Power BI Bar Chart?

Show Zero Values in Power BI Bar Chart

In a recent sales report, some products had no sales in a region, so their bars simply disappeared from the bar chart instead of showing zero. The data had blank cells, not zeros, and Power BI skips blanks. Here’s how to show zero values in a Power BI bar chart, and how to hide them … Read more >>>

How to Show Zero Values in Power Bi Line Chart?

power bi line chart show zero values

A Power BI line chart with a missing month doesn’t drop to zero; it draws a straight line across the gap, which makes a bad month look normal. In this tutorial, I’ll show you how to make the line chart show zero values when there’s no data, and how to hide zeros when you don’t … Read more >>>