The Populations of 4 Species of Animals Are Given by the Following

Short Answer

The populations of 4 species of animals are given by the following equations:
$P_{1}=470(0.81)^{t} P_{2}=900(1.28)^{t} P_{3}=670(0.73)^{t} P_{4}=640(1.05)^{t}$
What is the annual percent growth rate for the population that is growing the fastest?