The definition of velocity is “Just like a speedometer that measures how fast you’re hurtling through space, Tracker’s velocity is a measurement of how fast your team completes stories. Instead of miles or kilometers per hour, Tracker expresses velocity as the number of points completed per iteration.” (source: pivtoal blog)
What should be the ideal growth rate of team's velocity from one sprint to another? For example, if team is delivering 100 points in current sprint, what should be the expectation from the next sprint i.e. 102 points for 2% growth?