A piece of clothing is reduced from 200 yuan to 120 yuan, how much is the reduction
一件衣服从200元降低到120元，降低了多少
<gadget id="calculator">200 - 120</gadget>
<output>80</output>

<gadget id="calculator">80 / 200</gadget>
<output>2/5 = around 0.4</output>

<result>2/5 = around 0.4</result>