What is the increase of 70 kg is 98 kg.
70千克增加多少是98千克．
<gadget id="calculator">98 - 70</gadget>
<output>28</output>

<gadget id="calculator">28 / 70</gadget>
<output>2/5 = around 0.4</output>

<result>2/5 = around 0.4</result>