> For the complete documentation index, see [llms.txt](https://resources.less.tech/less-tech/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://resources.less.tech/less-tech/modelling/action-guides/new-columns/compare.md).

# Compare

<figure><img src="/files/cUhO6nIgriPy6OqAaEbL" alt=""><figcaption><p>The Compare Action</p></figcaption></figure>

The Compare Actions can be complex to understand but is very powerful. With it, you can move value vertically in your data set. It is common to use the compare tool when working with values summarized by dates where you want to understand how you have performed in a previous month. Take a look at the video below for an example.

{% embed url="<https://www.loom.com/share/4ca32207632a47879fc5d5124c7ce7be>" %}