Hi Priya,
Create a matrix with region and sales.
Now Go to Format pane and go to conditional formatting option.
Select the Background color and click on advanced controls.
![](https://www.edureka.co/community/?qa=blob&qa_blobid=6528949108806426730)
Now Click on Format and select rules.
Enter the rules using comparison operators and change color to show only certain regions.
Hope it helps you.