Hi there, there is probably some statistic or mathematical concept I am missing here.

I’m plotting AWS/Billing Estimated charges in Grafana, but I am having a hard time determining if the slope if increasing or not.

Basically I want to plot the graph in such a way, that I am aware of the rates of change. I.e. if spending goes up, I can notice that increase. If spending goes down, I should be able to visualise it too.

How do I do this? There must be some calculation I can perform?