Calculating End Date

Welcome to the forum!

Will you please attach a sample Excel workbook? We are not able to work with or manipulate a picture of one.

1. Make sure that your sample data are REPRESENTATIVE of your real data. The use of unrepresentative data is very frustrating and can lead to long delays in reaching a solution.

2. Make sure that your desired solution is also shown (mock up the results manually).

3. Make sure that all confidential data is removed or replaced with dummy data first (e.g. names, addresses, E-mails, etc.).

4. Try to avoid using merged cells as they cause lots of problems.

Unfortunately the attachment icon doesn't work at the moment, so to attach an Excel file you have to do the following: just before posting, scroll down to Go Advanced and then scroll down to Manage Attachments. Now follow the instructions at the top of that screen.

Please pay particular attention to point 2 (above): without an idea of your intended outcomes, it is often very difficult to offer appropriate advice.

OK,

So here's the workbook...

I can't mock up what I want to see because it's a moving target. What I need is a "Forecast finish" (bottom cell) date which moves when the "% Completed" cell is changed. As you can see, I've automatically calculated what % of the time is remaining in the cell above, but that is based on the start and end dates (deadline). What I'd like to see is that if a project today is at 25% completion then it will probably finish earlier than the end date (deadline), but if it's only at 2% it will give me a date which is later than the end date (deadline). I hope that makes sense?

Try

=B1+(TODAY()-B1)/B6

=(Today()-B1)/B6 +B1