A clothing store sells two different tops at a price of 120 yuan. As a result, one earns 20% and the other loses 20%. Does the clothing store owner make a profit or a loss? How much did you earn (lose)?
某服装店将两件不同的上衣都以120元的价格出售，结果一件赚了20%，另一件亏了20%，那么服装店老板是赚了还是亏了？赚(亏)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>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>