Velocity from one point to another?

Would anyone be able help me out with something please, how can I calculate the speed my character is traveling from one point to another. Technically Id like to find the players speed using the left thumbstick … or is that even possible?
I’m trying to find what nodes I could use to calculate I have a current position and a previous position of my character set up using variable floats but how to get the velocity from one to another?