An exponential formula that can be used to model the growth of the population of Lalaland from 1980 through 2000 is as follows: \displaystyle f\left(t\right)=2,500\left(1.02\rig ht)^{t}f(t)=2,500(1.02)
t

where 2,500 represents the Lalaland population in the year 1980, and t represents the number of years after 1980.

What is the percent change each year?