1. Click on hamburger icon.

2. Click on visualization tab and open Column Chart in edit mode.

3. The Edit menu box appears as you click on Line chart icon. And a widget gets added in content place automatically in dashboard.

4. Enter Following details in chart controls:

Series: Series 1
Datasets: Salesb.ds
Category Axis: country
Value Column: Extended price
Aggregation: Avg

Series: Series 2
Value Column: quantityordered
Aggregation: sum

Series: Series 3
Value Column: PriceEach
Aggregation: sum

5. Fill above details in edit box, As Shown in figure.

6. In Formatting Property click on General. In General click on Back To Back Chart.

Toggle Back To Back Chart, As shown in figure below:

7. Formatting Property Click on Series, In Series General Property enter Following details:

Series 1
Service Name: extendedPrice
Series 2
Service Name: qualityordered
Series 3
Service Name: PriceEach

8. Fill above details in edit box, As Shown in figure:

9. Click on Preview and Save and Exit.

10. Now, match your column chart with the below example, it should look like the figure below: