The original price of the Bosideng down jacket is 550 yuan, the price will be increased by 20% first, and then sold at a 20% discount. What is the current price?
波司登羽绒服原价550元，先涨价20%，然后打八折出售，现价多少元．
<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">550 * (6/5)</gadget>
<output>660</output>

<gadget id="calculator">80 / 100</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">660 * (4/5)</gadget>
<output>528</output>

<result>528</result>