As far as I know there is no standard functionality to do this, but it will be easy to achieve.
In this case you should use two attributes: Input & InputDisplay
On the screen you show the attribute Input Display. When this is changed by a user you call an on change microflow.
The on change microflow changes the Input to InputDisplay/100.
The same should work the other way around, when Input is changed by the system or when opening the page that displays the data InputDisplay should be set to Input*100.
Hope this helps
There are many ways to do it. For example it can be achieved using on change and on leave microflows. You need to use two attributes, Input (String) and ProcessedInput (Decimal) Here is one way to implement it: