Hi Ben,
Just so you know, if you see the image I've in my post, there is an overlap between Measure 2, Measure 3 and Measure 4 which is not how a Waterfall Chart should work. The reason for that overlap is because the sample data you provide has Negative (-ve) values for Measure 3 and hence the bar goes down instead of going up.
Make sense?
Thanks,
Mahboob Mohammed