What is absolute increase or the magnitude of increase in population growth? How is it obtained ? How does it differ from annual growth rate of population?

(a) (i) The absolute numbers added each year or decade is the magnitude of increase.
(ii) It is obtained by simply subtracting the earlier population (e.g., that of 1991 from the
later population (eg, that of 2001). It is referred to as the absolute increase
(b) On the other hand, the annual growth rate is studied in per cent per annum e.g., a rate of increase of 2 per cent per annum means that in a given year, there was an increase of two persons for every 100 persons in the base population. This is referred to as annual growth rate.