A certain village produced 480,000 kilograms of grain last year, an increase of 160,000 kilograms over the previous year. What percentage was the increase?
某村去年产粮48万千克，比前年增加了16万千克，增加了百分之几？
<gadget id="calculator">48 - 16</gadget>
<output>32</output>

<gadget id="calculator">16 / 32</gadget>
<output>1/2 = around 0.5</output>

<result>1/2 = around 0.5</result>