After swapping the digits in the ones digit and the digits in the hundreds digit of 854, how much is the new three-digit number smaller than the original three-digit number?
把854的个位上的数字与百位上的数字对调后，得到的新的三位数比原来的三位数小多少．
<gadget id="calculator">854 - 458</gadget>
<output>396</output>

<result>396</result>