Xiaogang’s family bought a new computer. The current price is 5580 yuan, which is 620 yuan cheaper than the original price. How much is Xiaogang’s computer cheaper?
小刚家新买了一台电脑，现价5580元，比原价便宜了620元，小刚家的这台电脑便宜了百分之几？
<gadget id="calculator">5_580 + 620</gadget>
<output>6_200</output>

<gadget id="calculator">620 / 6_200</gadget>
<output>1/10 = around 0.1</output>

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