In reply to Nope.

Thank you for your comment. There are two popular graphs that are called "Waterfall Charts." The one I show here is used in clinical trials (especially oncology). You can click on the links in this article to learn more about the construction and interpretation of this chart in clinical trials. The second graph (also called a "cascade chart") is used in business, management, and decision science. As you say, it shows a relative increase or decrease in a quantity during steps in a process. You can use the WATERFALL statement in PROC SGPLOT to create that chart.