Uncle Wang took a fancy to a set of sportswear, and the price was 200 yuan. After counter-offering, he sold it at a discount of 15%.
王叔叔看中一套运动服，标价200元，经过还价，打八五折出售，王叔叔实际付了多少元买了这套运动装．
<gadget id="calculator">85 / 100</gadget>
<output>17/20 = around 0.85</output>

<gadget id="calculator">200 * (17/20)</gadget>
<output>170</output>

<result>170</result>