The price of a 15-yuan automatic parachute is reduced by 20% and then raised by 20%. What is the current price?
一种15元的自动伞降价20%后又提价20%，现价是多少元．
<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">1 + (1/5)</gadget>
<output>6/5 = around 1.2</output>

<gadget id="calculator">15 * (4/5) * (6/5)</gadget>
<output>72/5 = around 14.4</output>

<result>72/5 = around 14.4</result>