growth rate

plural growth rates

1. The amount of growth in a quantity per unit of time.

   A global population growth rate of a constant 100 million people per year means an aging population.

2. The amount of growth in a quantity per unit of time, relative to the amount of the quantity during that time.

   A constant growth rate produces exponential growth.

   1 more example

   The growth rate is defined as the change in the dependent variable, Y, for a time period divided by the Y value at the beginning of the period.