The current price of a commodity is 200 yuan, which is 50 yuan lower than the original price. How much is it lower than the original price?
一种商品的现价是200元，比原价降低了50元，比原来降低了多少
<gadget id="calculator">200 + 50</gadget>
<output>250</output>

<gadget id="calculator">50 / 250</gadget>
<output>1/5 = around 0.2</output>

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