shopping mall is holding a sales promotion, and all the products are on sale at a 15% discount. Dad spent 1,700 yuan to buy a color TV. How much is this TV cheaper than the original price?
某商场搞促销活动，所有的商品都打八五折出售，爸爸用了1700元钱买回一台彩色电视机，这台电视机比原价便宜了多少钱？
<gadget id="calculator">85 / 100</gadget>
<output>17/20 = around 0.85</output>

<gadget id="calculator">1_700 / (17/20)</gadget>
<output>2_000</output>

<gadget id="calculator">2_000 - 1_700</gadget>
<output>300</output>

<result>300</result>