rate of increase
Synonyms
Examples
We may consequently state the fundamental theorem of Natural Selection in the form : The rate of increase in fitness of any organism at any time is equal to its genetic variance in fitness at that time.
The Muslim percentage has not only increased, but the rate of increase itself has increased.
We need to be careful when we talk about cutting health care costs. They are not going to be reduced - what we really want to do is do is slow the rate of increase.