1. Click on hamburger icon.

2. Click on (+) icon, from dashboard tab.

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

4. click on Formatting Property.

5. Enter Following details in Formatting Property:
Select Value: Total
Locale:selectAuto
Decimal Place: 2
Symbol: $
Symbol Position: Before
Rounding Mode: Half Up

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

7. Click on Preview and Save and Exit.

8. Now, match your Pivot with the below example, it should look like the figure below: