In January $2007,$ the average price of an asset was $$28,458.9$ years earlier, the average price was $$20,708.$ What was the annual increase in selling price?

Multiple Choice

$-3\mathrm{.}47\%$

$3\mathrm{.}60\%$

$3\mathrm{.}24\%$

$4\mathrm{.}31\%$

$3\mathrm{.}95\%$