A TV is priced at 1,200 yuan after a 20% price cut. How much is the price cut?
一台电视机降价20%后售价1200元，降价了多少元？
<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 * (1/5)</gadget>
<output>300</output>

<result>300</result>