The original price of a jacket is 350 yuan, and the current price is lower than the original price (2/7). How much is this jacket cheaper?
一件上衣原价350元，现价比原价降低了(2/7)，这件上衣便宜了多少元．
<gadget id="calculator">2 / 7</gadget>
<output>2/7 = around 0.285714</output>

<gadget id="calculator">350 * (2/7)</gadget>
<output>100</output>

<result>100</result>