The relative rate of change of a function 
is the ratio if its derivative
to itself, namely
 |
Relative Rate of Change
See also
Derivative, Function, Gradient, RatioExplore with Wolfram|Alpha
Cite this as:
Weisstein, Eric W. "Relative Rate of Change." From MathWorld--A Wolfram Web Resource. https://mathworld.wolfram.com/RelativeRateofChange.html