To create your first measure, select the Internet Sales table and then click New Measure... from the modeling ribbon. In the formula bar, type the following code and hit Enter:
Total Sales = SUM('Internet Sales'[Sales Amount])
One of the benefits of creating explicit measures is the ability to centralize formatting. Once the measure has been created, navigate to the modeling ribbon and change the formatting to $ English (United States), as shown in the following screenshot:
Figure 11-Change formatting to $ English(United States)