The original price of a shirt is 150 yuan, but the current price is 138 yuan, how much has it been reduced.
一件衬衫原价150元，现价138元，降低了多少．
<gadget id="calculator">150 - 138</gadget>
<output>12</output>

<gadget id="calculator">12 / 150</gadget>
<output>2/25 = around 0.08</output>

<result>2/25 = around 0.08</result>