The current price of a product is 8 yuan, which is 2 yuan lower than the original price, and how much is it lower than the original price
某商品现在售价8元，比原价降低2元，比原价降低了多少
<gadget id="calculator">2 + 8</gadget>
<output>10</output>

<gadget id="calculator">2 / 10</gadget>
<output>1/5 = around 0.2</output>

<result>1/5 = around 0.2</result>