A TV set is sold at a discount of 15% on the basis of the pricing, saving 300 yuan, how much is the price.
一台电视机，在定价的基础上打8.5折售出后，节省300元，定价为多少元．
<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">300 / (3/20)</gadget>
<output>2_000</output>

<result>2_000</result>