A4 Accounting

I prefer to call them Bridge charts rather than Waterfall charts, but Waterfall is the common name.

Excel added Waterfalls in Excel 2016.

I think the name Bridge is more descriptive since a bridge takes you from one place to another which is what the chart does with values.

Waterfalls in nature only fall down, whilst a waterfall chart has measures that rise and fall.

This blog post show many examples. Most examples are not done in Excel.

Link to blog post.