How to calculate a due date based on a project deadline?

I have a tracker that completes the due date for each line item based on the final deadline through either adding or subtracting. Is there a way to do the same in Smartsheet.

Deadline 10.15.2022, Budget Development needs completed 270 in advance.

Excel formula | =10/15/2022 - 270 = 01/18/2022

Any help would be greatly appreciated.

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Mike Wilday

=[Due Date]@row - 270

Will backtrack 270 calendar days.

=Workday([Due Date]@row , -270)

Will backtrack 270 working days.

Leslie Kuhlman

I am still not quite there:

Here is the error:

When I modify, I get this:

Here is the error:

Mike Wilday

I'm sorry, I missed the context that the due date was in the first row...

=Workday([Due Date]1 , -270) will calculate the due date for you. 😁

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