The cost of a product has dropped by 17%, what is the cost now
一种产品成本下降了17%，现在的成本是原来的多少
<gadget id="calculator">17 / 100</gadget>
<output>17/100 = around 0.17</output>

<gadget id="calculator">1 - (17/100)</gadget>
<output>83/100 = around 0.83</output>

<result>83/100 = around 0.83</result>