After a TV is reduced by 500 yuan, the selling price is 1,500 yuan. How much is the price reduction?
一台电视机降低500元后，售价是1500元，降价百分之几？
<gadget id="calculator">500 + 1_500</gadget>
<output>2_000</output>

<gadget id="calculator">500 / 2_000</gadget>
<output>1/4 = around 0.25</output>

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