Two bags of rice in A and B, after pouring 12.5% from bag A to bag B, the weight of the two bags of rice is equal, the original bag B is much less than bag A
甲乙两袋米，由甲袋倒出12.5%到乙袋后，两袋米的重量相等，原来乙袋比甲袋少多少多少
<gadget id="calculator">12.5 / 100</gadget>
<output>0.125</output>

<gadget id="calculator">1 - 0.125 - 0.125</gadget>
<output>0.75</output>

<gadget id="calculator">1 - 0.75</gadget>
<output>0.25</output>

<result>0.25</result>