Answer
$25\%$
Average annual percentage change: $2.26\%$
Work Step by Step
In 2000, wages plus benefits amount to ${$24}$, and in 2010, wages and benefits amount to a total of ${$30}$. The percentage increase is equal to the change over the initial, so we have$\frac{$30 - $24}{$24} = 25\%$.
Let the average annual percentage change in total compensation be equal to $r$. We have:
$24(1+r)^{10}=30$
$(1+r)^{10}=\frac{30}{24}=1.25$
$1+r=\sqrt[10]{1.25}\approx 1.0226$
$r\approx 2.26\%$
