The current price of a piece of clothing is 120 yuan, which is 40 yuan less than the original price. How much is the price reduction?
一件衣服，现价120元，比原价少了40元，降价了百分之几？
<gadget id="calculator">120 + 40</gadget>
<output>160</output>

<gadget id="calculator">40 / 160</gadget>
<output>1/4 = around 0.25</output>

<result>1/4 = around 0.25</result>