There were 2800 books in the school library last year, and the number of books this year has increased by 12% compared with last year. How many books have been increased this year compared to last year?
学校图书馆去年有图书2800册，今年图书册数比去年增加了12%，今年比去年增加了多少册？
<gadget id="calculator">12 / 100</gadget>
<output>3/25 = around 0.12</output>

<gadget id="calculator">2_800 * (3/25)</gadget>
<output>336</output>

<result>336</result>