Compute the percentage change in ROE from Year 2 to Year 3, Year 3 to Year 4, Year 4 to Year 5, and Year 5 to Year 6 in Excel. Note: Enter the percent rounded to one digit after the decimal; for example, enter 8.4 for 8.44%, or 8.5 for 8.45%. Note: Use a negative sign to indicate a decrease.

Costco (\$ millions) \begin{tabular}{|l|r|r|} \hline Year & \begin{tabular}{c} Net \\ Income \end{tabular} & \begin{tabular}{r} Stockholders' Equity \\ Ending Balance \end{tabular} \\ \hline Year 1 & $2,377 & $ \\ \hline Year 2 & 2,350 & 10,843 \\ \hline Year 3 & 2,679 & 12,332 \\ \hline Year 4 & 3,134 & 11,079 \\ \hline Year 5 & 3,659 & 13,103 \\ \hline Year 6 & 4,002 & 15,584 \\ \hline \end{tabular} \begin{tabular}{|c|r|} \hline Period Increase (Decrease) \\ \hline Year 2 to Year 3 & 19.06% \\ \hline Year 3 to Year 4 & 24.14% \\ \hline Year 4 to Year 5 & 23.95% \\ \hline Year 5 to Year 6 & 21.36% \\ \hline \end{tabular}