The attendance rate of Class 1 is 90%, and the number of people who have arrived is much more than the number of people who have not arrived.
六1班的出勤率是90%，到了的人数比没到人数多多少．
<gadget id="calculator">100 - 90</gadget>
<output>10</output>

<gadget id="calculator">90 - 10</gadget>
<output>80</output>

<gadget id="calculator">80 / 10</gadget>
<output>8</output>

<result>8</result>