What percentage did Lowe's Income from Operations increase or decrease from year ended February 1, 2019 to January 31, 2020 (round 2 decimal places)?

\begin{tabular}{|c|c|c|c|c|c|c|c|c|c|} \hline \multirow[b]{2}{*}{ Current Earnings } & \multicolumn{3}{|c|}{ January 29, 2021} & \multicolumn{3}{|c|}{ January 31, 2020} & \multicolumn{3}{|c|}{ February 1, 2019} \\ \hline & & nount & % Sales & & Amount & % Sales & & Amount & % Sales \\ \hline Net sales & \$ & 89,597 & 100.00% & \$ & 72,148 & 100.00% & \$ & 71,309 & 100.00% \\ \hline Cost of sales & & 60,025 & 66.99 & & 49,205 & 68.20 & & 48,401 & 67.88 \\ \hline Gross margin & & 29,572 & 33.01 & & 22,943 & 31.80 & & 22,908 & 32.12 \\ \hline Expenses: & & & & & & & & & \\ \hline Selling, general and administrative & & 18,526 & 20.68 & & 15,367 & 21.30 & & 17,413 & 24.41 \\ \hline Depreciation and amortization & & 1,399 & 1.56 & & 1,262 & 1.75 & & 1,477 & 2.07 \\ \hline Operating income & & 9,647 & 10.77 & & 6,314 & 8.75 & & 4,018 & 5.64 \\ \hline \end{tabular}