The shopping mall buys 400 towels, and plans to sell each towel at 6 yuan. After selling (4/5), the rest will be sold at (1/2) the original price. How much do these towels cost in total?
商场购进400条毛巾，计划每条售价6元，卖出(4/5)后，余下的按原价的(1/2)出售．这些毛巾一共可以卖多少钱？
<gadget id="calculator">4 / 5</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">400 * (4/5)</gadget>
<output>320</output>

<gadget id="calculator">320 * 6</gadget>
<output>1_920</output>

<gadget id="calculator">400 - 320</gadget>
<output>80</output>

<gadget id="calculator">1 / 2</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">6 * (1/2)</gadget>
<output>3</output>

<gadget id="calculator">80 * 3</gadget>
<output>240</output>

<gadget id="calculator">1_920 + 240</gadget>
<output>2_160</output>

<result>2_160</result>