The original price of a mobile phone is 1,500 yuan, and now it is sold at a 20% discount. How much is it now?
一部手机原价是1500元，现在打8折出售，现在是多少元．
<gadget id="calculator">80 / 100</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">1_500 * (4/5)</gadget>
<output>1_200</output>

<result>1_200</result>