The natural rate of population increase is the .?

The natural rate of population increase is the difference between the Birth Rate and the Death Rate within a specific population over a given period, typically expressed as a percentage. It reflects the growth or decline of a population excluding the effects of migration. A positive natural rate indicates that births outnumber deaths, leading to population growth, while a negative rate suggests the opposite. This measure is crucial for understanding demographic trends and planning for future societal needs.