□*0.25/0.08=100, □=how much.
□*0.25/0.08=100，□=多少．
<gadget id="calculator">0.08 / 0.25</gadget>
<output>0.32</output>

<gadget id="calculator">100 * 0.32</gadget>
<output>32</output>

<result>32</result>