First, connect your data source in Grow.
Once you get to the Edit New Metric page, click the Column button to reveal the chart type drop down and select Funnel.
Click the + Add Data button to select your data. For our example, we are going to choose Row 2, since we want the totals from each lead source. The Data Series can be columns, rows, or even individual cells.
Under the same heading, you can use the options to change the colors of your funnel, change the number format, display the labels for each part of the funnel, or show the legend when your metric is in Expanded View.
To add labels to your funnel chart, click + Add segments. In this case we will be selecting Row 1 since that is where our column headers are located.
Give your metric a title, then save it to a dashboard.