In a factory, due to the adoption of new technology, the cost of each product is now 37.4 yuan, which is 6.6 yuan lower than before, and how much is it lower than before?
一家工厂，由于采用了新工艺，现在每件产品的成本是37.4元，比原来降低了6.6元，比原来降低了百分之几？
<gadget id="calculator">37.4 + 6.6</gadget>
<output>44</output>

<gadget id="calculator">6.6 / 44</gadget>
<output>0.15</output>

<result>0.15</result>