One day, the shopping mall sold two washing machines at 2,340 yuan, one of which was sold with a 30% increase in price from the purchase price, and the other was sold at a 10% discount on the purchase price for display samples. , How much money did the shopping mall earn in total when the two washing machines were put together?
商场某天卖出两台洗衣机，售价都是2340元，其中一台是在进货价基础上提价30%出售的，另一台是展示样品，在进货价基础上降了10%处理的，两台洗衣机合在一起商场一共赚了多少元．
<gadget id="calculator">30 / 100</gadget>
<output>3/10 = around 0.3</output>

<gadget id="calculator">1 + (3/10)</gadget>
<output>13/10 = around 1.3</output>

<gadget id="calculator">2_340 / (13/10)</gadget>
<output>1_800</output>

<gadget id="calculator">2_340 - 1_800</gadget>
<output>540</output>

<gadget id="calculator">10 / 100</gadget>
<output>1/10 = around 0.1</output>

<gadget id="calculator">1 - (1/10)</gadget>
<output>9/10 = around 0.9</output>

<gadget id="calculator">2_340 / (9/10)</gadget>
<output>2_600</output>

<gadget id="calculator">2_600 - 2_340</gadget>
<output>260</output>

<gadget id="calculator">540 - 260</gadget>
<output>280</output>

<result>280</result>