Resource link
This blog post Cole Nussbaumer for Storytelling with Data provides an Excel template for creating slopegraphs.
(Nussbaumer, 2013)
Sources
Nussbaumer, C., (2013), Slopegraph template, Storytelling with Data. Retrieved from: http://www.storytellingwithdata.com/2013/11/slopegraph-template.html
'Slopegraph template' is referenced in:
Method