A population of 600 birds faced a problem of biological magnification resulting in a large number of deaths reducing their population to 350. But 230 births also took place and 21 birds immigrated into the population while 13 birds migrated out. How many deaths took place in the population? What is the growth rate of this small population?
So I guess we need to use the PGR = (BIRTHS + IMMIGRATION) - (DEATH + EMIGRATION) / INITIAL POPULATION x 100%
So.. I keep getting -2% as my answer, but apparently the correct answer is -41.7%