A washing machine is now priced at 1,200 yuan, which is 20% cheaper than before. How much is the current price cheaper than before?
一种洗衣机现在售价1200元，比原来便宜了20%．现在的售价比原来便宜了多少元？
<gadget id="calculator">20 / 100</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">1 - (1/5)</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">1_200 / (4/5)</gadget>
<output>1_500</output>

<gadget id="calculator">1_500 - 1_200</gadget>
<output>300</output>

<result>300</result>