The flour extraction rate of wheat is 85%, that is, how many kilograms of flour can be obtained from 1 ton of wheat.
小麦的出粉率是85%，即1吨小麦可以得到多少千克的面粉．
<gadget id="calculator">85 / 100</gadget>
<output>17/20 = around 0.85</output>

<gadget id="calculator">1 * 1_000 * (17/20)</gadget>
<output>850</output>

<result>850</result>