String remove last characters

It’s complicated !
List.Getitematindex gives me the list i want from my excel sheet (numbers ?) then string.from O then string remove to take of the null and round my strings.
But i does not work as i want (taking off the ,00) and when i try to change the count it doesnt work
Thank you for your help

How are you using the information downstream? Do you need numbers or strings??

You seem to insist on using the same process as the original…

If you wished to remove everything after (incl) “,” then change “-4” to “-7”…

Already tried
I think it’s the null values the problem