If the number A is increased by 25%, it is equal to the number B, so what percentage of the number B is the number A?
甲数如果增加25%就和乙数相等，那么乙数是甲数的百分之几？
<gadget id="calculator">25 / 100</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">1 + (1/4)</gadget>
<output>5/4 = around 1.25</output>

<result>5/4 = around 1.25</result>