A total of 800 copies of "Grimm's Fairy Tales" were shipped to the bookstore, and 550 copies were sold in the first half of the month, with a unit price of 24 yuan. The rest are going to be sold at half price.
书店一共运来800本《格林童话)，上半月卖出550本，单价是24元，剩下的打算按半价出售，还能收人多少元？
<gadget id="calculator">24 / 2</gadget>
<output>12</output>

<gadget id="calculator">800 - 550</gadget>
<output>250</output>

<gadget id="calculator">12 * 250</gadget>
<output>3_000</output>

<result>3_000</result>