The current birth rate per thousand is 32, whereas corresponding death rate is 11 per thousand. The growth rate in terms of population increase in per cent is given by
For 1000 people, 32 person are born and 11 die.
Overall increase in population = 32-11 = 21
%increase in popoulation = $$\frac{21}{1000}\times\ 100$$% = 2.1%
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