A customer buys a color TV with a price tag of 3,200 yuan. After bargaining, he only pays 10% off the price. How much is it cheaper than the original one?
一位顾客购买一台标价3200元的彩电，经过讨价还价后，只花九折的钱，比原来便宜多少元？
<gadget id="calculator">90 / 100</gadget>
<output>9/10 = around 0.9</output>

<gadget id="calculator">3_200 * (9/10)</gadget>
<output>2_880</output>

<gadget id="calculator">3_200 - 2_880</gadget>
<output>320</output>

<result>320</result>