Suning Mall celebrates New Year's Day with activities. A TV of a certain brand whose original price was 3,500 yuan is now discounted by 15%. How much is it cheaper than the original price?
苏宁商城庆元旦搞活动．原价3500元的某品牌电视，现在打八五折，比原来的价格便宜了多少元钱？
<gadget id="calculator">85 / 100</gadget>
<output>17/20 = around 0.85</output>

<gadget id="calculator">3_500 * (17/20)</gadget>
<output>2_975</output>

<gadget id="calculator">3_500 - 2_975</gadget>
<output>525</output>

<result>525</result>