A counter in a department store sells two products A and B at the same time, and each gets 30 yuan. It is known that product A has made a profit of 20%, and product B has lost 20%. How much is the total loss of this counter selling these two products?
百货商店某柜台同时卖出A、B两件商品，每件各得30元，已知A商品赚了20%，B商品亏了20%，这个柜台卖出这两件商品合计亏了多少元
<gadget id="calculator">20 / 100</gadget>
<output>1/5 = around 0.2</output>

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

<gadget id="calculator">30 / (4/5)</gadget>
<output>75/2 = around 37.5</output>

<gadget id="calculator">(75/2) - 30</gadget>
<output>15/2 = around 7.5</output>

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

<gadget id="calculator">30 / (6/5)</gadget>
<output>25</output>

<gadget id="calculator">30 - 25</gadget>
<output>5</output>

<gadget id="calculator">(15/2) - 5</gadget>
<output>5/2 = around 2.5</output>

<result>5/2 = around 2.5</result>