Junjun weighed 30 kilograms last year, but this year it has increased to 36 kilograms. How much has the weight increased?
军军去年体重30千克，今年增加到36千克，增加了百分之几？
<gadget id="calculator">36 - 30</gadget>
<output>6</output>

<gadget id="calculator">6 / 30</gadget>
<output>1/5 = around 0.2</output>

<result>1/5 = around 0.2</result>