Read the following texts and table with financial data from an S&P 500 earnings report carefully.Based on the question-answer history (if provided), answer the last question. The answer may require mathematical calculation based on the data provided.

Text: year ended december 31 , 2010 compared to year ended december 31 , 2009 net revenues increased $ 207.5 million , or 24.2% ( 24.2 % ) , to $ 1063.9 million in 2010 from $ 856.4 million in 2009 . net revenues by product category are summarized below: . <table class='wikitable'><tr><td>1</td><td>( in thousands )</td><td>year ended december 31 , 2010</td><td>year ended december 31 , 2009</td><td>year ended december 31 , $ change</td><td>year ended december 31 , % (  % ) change</td></tr><tr><td>2</td><td>apparel</td><td>$ 853493</td><td>$ 651779</td><td>$ 201714</td><td>30.9% ( 30.9 % )</td></tr><tr><td>3</td><td>footwear</td><td>127175</td><td>136224</td><td>-9049 ( 9049 )</td><td>-6.6 ( 6.6 )</td></tr><tr><td>4</td><td>accessories</td><td>43882</td><td>35077</td><td>8805</td><td>25.1</td></tr><tr><td>5</td><td>total net sales</td><td>1024550</td><td>823080</td><td>201470</td><td>24.5</td></tr><tr><td>6</td><td>license revenues</td><td>39377</td><td>33331</td><td>6046</td><td>18.1</td></tr><tr><td>7</td><td>total net revenues</td><td>$ 1063927</td><td>$ 856411</td><td>$ 207516</td><td>24.2% ( 24.2 % )</td></tr></table> net sales increased $ 201.5 million , or 24.5% ( 24.5 % ) , to $ 1024.6 million in 2010 from $ 823.1 million in 2009 as noted in the table above . the increase in net sales primarily reflects : 2022 $ 88.9 million , or 56.8% ( 56.8 % ) , increase in direct to consumer sales , which includes 19 additional stores in 2010 ; and 2022 unit growth driven by increased distribution and new offerings in multiple product categories , most significantly in our training , base layer , mountain , golf and underwear categories ; partially offset by 2022 $ 9.0 million decrease in footwear sales driven primarily by a decline in running and training footwear sales . license revenues increased $ 6.1 million , or 18.1% ( 18.1 % ) , to $ 39.4 million in 2010 from $ 33.3 million in 2009 . this increase in license revenues was primarily a result of increased sales by our licensees due to increased distribution and continued unit volume growth . we have developed our own headwear and bags , and beginning in 2011 , these products are being sold by us rather than by one of our licensees . gross profit increased $ 120.4 million to $ 530.5 million in 2010 from $ 410.1 million in 2009 . gross profit as a percentage of net revenues , or gross margin , increased 200 basis points to 49.9% ( 49.9 % ) in 2010 compared to 47.9% ( 47.9 % ) in 2009 . the increase in gross margin percentage was primarily driven by the following : 2022 approximate 100 basis point increase driven by increased direct to consumer higher margin sales ; 2022 approximate 50 basis point increase driven by decreased sales markdowns and returns , primarily due to improved sell-through rates at retail ; and 2022 approximate 50 basis point increase driven primarily by liquidation sales and related inventory reserve reversals . the current year period benefited from reversals of inventory reserves established in the prior year relative to certain cleated footwear , sport specific apparel and gloves . these products have historically been more difficult to liquidate at favorable prices . selling , general and administrative expenses increased $ 93.3 million to $ 418.2 million in 2010 from $ 324.9 million in 2009 . as a percentage of net revenues , selling , general and administrative expenses increased to 39.3% ( 39.3 % ) in 2010 from 37.9% ( 37.9 % ) in 2009 . these changes were primarily attributable to the following : 2022 marketing costs increased $ 19.3 million to $ 128.2 million in 2010 from $ 108.9 million in 2009 primarily due to an increase in sponsorship of events and collegiate and professional teams and athletes , increased television and digital campaign costs , including media campaigns for specific customers and additional personnel costs . in addition , we incurred increased expenses for our performance incentive plan as compared to the prior year . as a percentage of net revenues , marketing costs decreased to 12.0% ( 12.0 % ) in 2010 from 12.7% ( 12.7 % ) in 2009 primarily due to decreased marketing costs for specific customers. .
Question: what was the gross profit in 2010?
Answer: 530.5
Question: and what was it in 2009?
Answer: 120.4
Question: what was, then, the change over the year?

user
410.1
assistant