The wheat output in 2011 was 105% of that in 2010, which shows how much the output in 2011 increased compared with that in 2010.
2011年小麦产量是2010年的105%，说明2011年比2010年增产多少．
<gadget id="calculator">105 / 100</gadget>
<output>21/20 = around 1.05</output>

<gadget id="calculator">(21/20) - 1</gadget>
<output>1/20 = around 0.05</output>

<result>1/20 = around 0.05</result>