To produce a kind of glass, after adopting the new technology, the cost of each glass is reduced to 1.5 yuan. Now the cost per piece is reduced by 37.5% compared with the original one. How much was the original cost per piece?
生产一种玻璃杯，采用新工艺后，每只成本降低到1.5元．现在每只成本比原来降低了37.5%，原来每只成本是多少元？
<gadget id="calculator">37.5 / 100</gadget>
<output>0.375</output>

<gadget id="calculator">1 - 0.375</gadget>
<output>0.625</output>

<gadget id="calculator">1.5 / 0.625</gadget>
<output>2.4</output>

<result>2.4</result>