Lingling bought a Walkman, the original price was 160 yuan, and now it is sold at a 10% discount when leaving the store. The current price is much cheaper than the original price.
玲玲买了一个随身听，原价160元，现在离店打九折出售，现价比原价便宜了多少元．
<gadget id="calculator">90 / 100</gadget>
<output>9/10 = around 0.9</output>

<gadget id="calculator">1 - (9/10)</gadget>
<output>1/10 = around 0.1</output>

<gadget id="calculator">160 * (1/10)</gadget>
<output>16</output>

<result>16</result>