A children's clothing store sells two different sets of children's clothing for 120 yuan each, and as a result, one set earns 20% and the other set loses 20%. In general, how much is the children's clothing store losing?
某童装店各以120元卖出两套不同的童装，结果一套赚20%，一套亏本20%，总的来说，这个童装店是亏了多少元
<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>