A store buys a batch of color TVs and sets the price at a profit of 20%. When 80% of the TVs are sold, the rest are sold at 20% off the price. What is the profit?
某商店进了一批彩电，先按20%的利润定价，当售出这批彩电的80%后，剩下的按定价的八折售出，获利百分之几？
<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">80 / 100</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">1 * (6/5) * (4/5)</gadget>
<output>24/25 = around 0.96</output>

<gadget id="calculator">1 - (4/5)</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">1.2 * (4/5) * (1/5)</gadget>
<output>0.192</output>

<gadget id="calculator">0.192 - 1</gadget>
<output>-0.808</output>

<gadget id="calculator">(24/25) + (-0.808)</gadget>
<output>0.152</output>

<gadget id="calculator">0.152 / 1</gadget>
<output>0.152</output>

<result>0.152</result>