A small car originally cost 150,000 yuan each, but now it costs 120,000 yuan each. How much has it been reduced?
一种小汽车，原来每辆售价15万元，现在每辆售价12万元，降低了百分之几？
<gadget id="calculator">15 - 12</gadget>
<output>3</output>

<gadget id="calculator">3 / 15</gadget>
<output>1/5 = around 0.2</output>

<result>1/5 = around 0.2</result>