The position of each digit in a number determines the value of the number.
Except for 0, which has a zero value in any position in the number, when a digit changes its position, its place value also changes, therefore changing the value of the number.
Example: The digits 1, 0, 3, 2.
In number 1.032 the digit 3 has 3-tens value.
But in 1,302, the digit 3 has a 3-hundreds value.
Also, 1,032 ≠ 1,302, but 1,032<1,302.