A piece of clothing is now priced at 60 yuan, which is 20 yuan lower than the original price, and how much is it lower than the original price
一件衣服现在售价60元，比原价降低20元，比原价降低了多少
<gadget id="calculator">60 + 20</gadget>
<output>80</output>

<gadget id="calculator">20 / 80</gadget>
<output>1/4 = around 0.25</output>

<result>1/4 = around 0.25</result>