Annual growth rate is
When crude death rate is substracted from crude bih rate , the net residual is current annual growth rate, exclusive of migration. Population growth rates like railway trains are subject to momentum. They sta slowly and gains momentum, once in motion, it takes time to bring momentum under control. Reference: Park&;s textbook of preventive and social medicine, 23rd edition, pg no: 481
Crude bih rate-Crude death rate
Crude death rate-Crude bih rate
Crude bih rate-Crude death rate x 100\/Crude bih rate
Crude bih rate-crude death rate x 100\/Mid bih rate population
Demography and family planning