Exponential decay can be expressed as:
f=ir^t, f=final value, i=initial value, r=common ratio (or rate) and t=times rate is applied (or time).
In this case i=567 and r=(100-1.5)/100=0.985, so the equation is:
p(t)=567(0.985^t), in this case t=year-2001=y-2001 so we can say:
p(y)=567(0.985)^(y-2001) so in the year 2010
p(2010)=567(0.985)^(2010-2001)
p(2010)=567(0.985^9)
p(2010)≈494.89 (to nearest hundredth)
Since we are dealing with people, population needs to be an integer amount
p(2010)≈495 (to nearest whole person :P)
