A kind of leather shoes are first sold at a price increase of 30% from the cost price, and then sold at a 20% discount on the price for promotion. Now each pair of leather shoes sells for 208 yuan. Is it a loss or a profit to sell a pair of these leather shoes? How much do you lose or earn?
一种皮鞋，先按成本价提高30%标价出售，后为促销，又按标价打八折出售，现在每双皮鞋卖208元．这种皮鞋卖出一双是赔还是赚？赔或赚多少元？
<gadget id="calculator">80 / 100</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">208 / (4/5)</gadget>
<output>260</output>

<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">260 / (13/10)</gadget>
<output>200</output>

<gadget id="calculator">208 - 200</gadget>
<output>8</output>

<result>8</result>