A certain village has 121 color TVs per 100 households this year, and last year there were 55 per 100 households. What percentage is the increase this year compared to last year?
某村今年每百户拥有彩电121台，去年每百户有55台，今年比去年增长了百分之几？
<gadget id="calculator">121 - 55</gadget>
<output>66</output>

<gadget id="calculator">66 / 55</gadget>
<output>6/5 = around 1.2</output>

<result>6/5 = around 1.2</result>