Let's assume that Allie's pay before the increase is the 100% of the pay. Then, using a rule of three, we get the following:
[tex]\begin{gathered} 12.50\rightarrow100\% \\ 13.25\rightarrow x\% \\ \Rightarrow x=\frac{13.25\cdot100}{12.50}=\frac{1325}{12.50}=106 \\ x=106\% \end{gathered}[/tex]therefore, the percent increase in Allie's pay is 106 - 100 = 6%