In a paddy field, the rice harvested this year is 1000kg, which is 200kg more than last year. What percentage is the increase in this paddy field this year compared to last year?
一块稻田，今年收稻谷1000kg，比去年增产了200kg，这块稻田今年比去年增产了百分之几？
<gadget id="calculator">1_000 - 200</gadget>
<output>800</output>

<gadget id="calculator">200 / 800</gadget>
<output>1/4 = around 0.25</output>

<result>1/4 = around 0.25</result>