I am looking for a way to take a mixed number (whole number with decimal), strip the whole number(s), leaving only the 2 digit decimal. The whole number portion can be 1 or more digits.

Example..........start with 10.46............I want to be left with .46
Example..........start with 128.32............I want to be left with .32

Is there a a function or operator that will remove any and all whole numbers?