Sea-Gull TV Factory produced 480,000 TVs last year, a 20% decrease from the previous year. How many million TVs were produced in the previous year?
海鸥电视机厂去年电视机的产量是48万台，比前年减少二成，前年生产电视机多少万台？
<gadget id="calculator">20 / 100</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">1 - (1/5)</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">48 / (4/5)</gadget>
<output>60</output>

<result>60</result>