A professional household raises 1,000 ducks and 2,000 geese. How many percent fewer ducks are raised than geese?
一个专业户养鸭1000只，养鹅2000只．养的鸭比鹅少百分之几？
<gadget id="calculator">2_000 - 1_000</gadget>
<output>1_000</output>

<gadget id="calculator">1_000 / 2_000</gadget>
<output>1/2 = around 0.5</output>

<result>1/2 = around 0.5</result>