Sandra Quick made an investment of $$20,151\mathrm{.}73.$ From this investment, she will receive $$2,500$ annually for the next $15$ years starting one year from now.

What rate of interest will Sandra's investment be earning for her? $($Hint: Use Table $4.)($For calculation purposes, use $5$ decimal places as displayed in the factor table provided. Round answer to O decimal places, e$.$g$.25\%.)$