A clothing store sells two kinds of clothes, one is new at 120 yuan each, and can earn 20%; the other is last year’s old style, and the shopkeeper sells it at 120 yuan at a 20% loss. Selling one is to make money or lose money? How much do you lose (or earn)?
一个服装店出售两种服装，一种新款每件售价120元，可赚20%，另一种由于是去年的旧款，店主处理出售，每件赔本20%也卖120元，请问若各卖一件是赚钱还是赔钱？赔(或赚)多少元？
<gadget id="calculator">20 / 100</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">1 + (1/5)</gadget>
<output>6/5 = around 1.2</output>

<gadget id="calculator">120 / (6/5)</gadget>
<output>100</output>

<gadget id="calculator">120 - 100</gadget>
<output>20</output>

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

<gadget id="calculator">120 / (4/5)</gadget>
<output>150</output>

<gadget id="calculator">150 - 120 - 20</gadget>
<output>10</output>

<result>10</result>