Remove the % after 81.3%, how many times this number will be expanded to the original.
把81.3%后的%去掉，这个数扩大到原来的多少倍．
<gadget id="calculator">81.3 / 100</gadget>
<output>0.813</output>

<gadget id="calculator">81.3 / 0.813</gadget>
<output>100</output>

<result>100</result>