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Population change
(Births + immigration) - (Deaths + emigration)
Doubling Time
70/growth rate
CBR/CDR
(births or deaths)/(pop. by 1000)
(Ex. 150000 —> 150)
Percent Change
(new-old)/old x 100
Growth Rate (R)
(CBR-CDR)/10
Final Population Size
Nfinal = Ninitial (rt)
