The original price of an electrical appliance is 150 yuan, and the current price is 15 yuan lower than the original price. How much is the reduction?
一件电器原价150元，现价比原价降低15元，降低了百分之几？
<gadget id="calculator">15 / 150</gadget>
<output>1/10 = around 0.1</output>

<result>1/10 = around 0.1</result>