Position Open Date greater then Offer Date

[blackbranded]

I m calculating then difference between position date and offer date which perfectly working fine but i get problem when offer date is less then positon open date
I need positive value
i did last tyme with with condition but now i dont remember how i did that please anyone help me is this

 

[AlanSidman]

Use the DateDif function. See this link for syntax-->https://www.techonthenet.com/excel/formulas/datedif.php