The current price of a product is 12 yuan, which is 3 yuan lower than the original price. How much is the price reduction?
一件商品现价12元，比原来降低了3元，降价多少
<gadget id="calculator">12 + 3</gadget>
<output>15</output>

<gadget id="calculator">3 / 15</gadget>
<output>1/5 = around 0.2</output>

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