A shopping mall sells two commodities with different purchase prices, and the price is 1200 yuan. According to the purchase price, one commodity makes a profit of 50% and the other commodity loses 20%. In this transaction, the profit of this shopping mall is still loss? How much is the profit or loss?
某商场卖出两件进价不同的商品，售价都是1200元，按进价一件商品盈利50%、另一件商品亏本20%，那么在这次买卖活动中，这家商场盈利还是亏本？盈利或亏本多少元？
<gadget id="calculator">50 / 100</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">1 + (1/2)</gadget>
<output>3/2 = around 1.5</output>

<gadget id="calculator">1_200 / (3/2)</gadget>
<output>800</output>

<gadget id="calculator">1_200 - 800</gadget>
<output>400</output>

<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>

<gadget id="calculator">400 - 300</gadget>
<output>100</output>

<result>100</result>