The original price of a coat is 3,000 yuan, and the shopping mall will first reduce the price by 10%, and then give it a 20% discount. How much is the price of this coat now?
一件大衣原价3000元，商场搞活动先降价10%，再打八折．这件大衣现在售价多少元？
<gadget id="calculator">10 / 100</gadget>
<output>1/10 = around 0.1</output>

<gadget id="calculator">1 - (1/10)</gadget>
<output>9/10 = around 0.9</output>

<gadget id="calculator">80 / 100</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">3_000 * (9/10) * (4/5)</gadget>
<output>2_160</output>

<result>2_160</result>