There is a kind of woolen sweater in a shopping mall. The price of each piece is 120 yuan, which is 25% cheaper than the original price. How much is the current price cheaper than the original price?
商场有一种羊毛衫，每件售价是120元，比原来的售价便宜25%，现在售价比原来售价便宜多少元？
<gadget id="calculator">25 / 100</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">1 - (1/4)</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">120 / (3/4)</gadget>
<output>160</output>

<gadget id="calculator">160 - 120</gadget>
<output>40</output>

<result>40</result>