A computer is priced at 4,880 yuan after a 20% discount, how much cheaper than the original one?
一台电脑打八折后售价4880元，比原来便宜多少元？
<gadget id="calculator">80 / 100</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">4_880 / (4/5)</gadget>
<output>6_100</output>

<gadget id="calculator">6_100 - 4_880</gadget>
<output>1_220</output>

<result>1_220</result>