The original price of an LCD color TV is 8,000 yuan, and the store is now offering a 10% discount. How much is it cheaper to buy this TV than before?
一台液晶彩色电视机原价8000元，商店现在九折促销，现在买这台电视比原来便宜多少元？
<gadget id="calculator">90 / 100</gadget>
<output>9/10 = around 0.9</output>

<gadget id="calculator">1 - (9/10)</gadget>
<output>1/10 = around 0.1</output>

<gadget id="calculator">8_000 * (1/10)</gadget>
<output>800</output>

<result>800</result>