The original price of a certain air conditioner in Huadi Department Store is 2,500 yuan, and it is now on sale at a 20% discount.
华地百货某种空调原价2500元，现八折出售，现在每台只要多少．
<gadget id="calculator">80 / 100</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">2_500 * (4/5)</gadget>
<output>2_000</output>

<result>2_000</result>