The original price of a coat is 4,000 yuan, but the current price is 2,500 yuan. How much is the current price of this coat cheaper than the original price?
一件大衣原价4000元，现在售价2500元，这件大衣现价比原价便宜百分之几？
<gadget id="calculator">4_000 - 2_500</gadget>
<output>1_500</output>

<gadget id="calculator">1_500 / 4_000</gadget>
<output>3/8 = around 0.375</output>

<result>3/8 = around 0.375</result>