The original price of a refrigerator is 2,100 yuan, and it is supplied with a discount of 15% during festivals. How much yuan can each refrigerator save?
一台冰箱原价2100元，节日八五折优惠供应，每台冰箱节省多少元？
<gadget id="calculator">85 / 100</gadget>
<output>17/20 = around 0.85</output>

<gadget id="calculator">1 - (17/20)</gadget>
<output>3/20 = around 0.15</output>

<gadget id="calculator">2_100 * (3/20)</gadget>
<output>315</output>

<result>315</result>