Dear User,
Good day!!
As per your requirement, please check whether you are looking for the output as below:
If yes, here is the formula you can use:
=IF(OR(ISBLANK([COLUMN 2]),[COLUMN 2]>TODAY()),IF(ISBLANK([COLUMN 1]),"",(TODAY()-[COLUMN 1])),"")
If not, you can share your required output in the form screenshot which will help us to better understand and guide you with correct formula.
Appreciate your patience and understanding. Have a good day!!
Best Regards,
Sophia