I would like to visualize how a percentage evolves in time over a geographical area.
In particular I have the percentage of products delivered in different regions and I want to show the weekly trend for each of the 21 regions. Currently I show a heatmap with the values of the current week and three line plots showing the trends of the 3 worst regions. I would like to show the full picture. Unluckily I can't use animations as I have to put the visualization on a static powerpoint.
I'm working with d3, sql and excel. Any idea?