# Dynamic ranking with numeric parameters

The TopN feature can work with [Power BI numeric range parameters](https://learn.microsoft.com/en-us/power-bi/transform-model/desktop-what-if), enabling you to easily perform what-if analysis. You just need to adjust the ranking slider to apply TopN.

You can set up dynamic ranking in 2 simple steps:

**STEP 1:** Assign the Power BI numeric range parameter to the Tooltip categories visual parameter.

**STEP 2:** In the TopN configuration window, select *Measure* from the **By** dropdown. Select the numeric range parameter name from the **Measure** dropdown. In this case, we've named the parameter 'RankingSlider'.

<figure><img src="/files/ZIdcbsHOYJmBoiVGBbwv" alt=""><figcaption><p>Setting up dynamic ranking</p></figcaption></figure>

Notice how the axis categories change in response to the slider changes. Only the top-performing categories are displayed based on their rank.

<figure><img src="/files/dPh86Tlcm8xDeYwI2fVz" alt=""><figcaption><p>Dynamic ranking in Analytics+ visuals</p></figcaption></figure>


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