Xinglong store sells 15 boxes of pens, 8 pens per box, 4.45 yuan per pen, how much is the total price /
兴隆商店卖出钢笔15盒，每盒8支，每支钢笔4.45元，一共卖了多少元/
<gadget id="calculator">15 * 8 * 4.45</gadget>
<output>534</output>

<result>534</result>