# Cumulative-Flow Diagram

Hi

I have been watching a bunch of videos on how estimates are useless and the new trend is "forecasting". It seems that what people suggest, is to count all the tasks a project has. Then count how many task are complete.

I would like to be able to take a snapshot of this each week.

Then generate a report that shows this along with a average line and a line showing the increase of total tasks (cause tasks always get added).

The idea is that the intersection of these two lines when projected out, give you a predication of when the project would be done.

I am new to smartsheet and have no idea how to do any of this. Any advice would be great.

I have attached and example image showing what i am talking about. But rather than story points, i am just looking at task counts

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You won't be able to combine bars and lines like this, but you can use (suggested) just lines to show actual vs forecast.

You would need a column with your dates listed, a column for the actuals, and a column for the forecast.

The column for the actuals is a straightforward COUNTIFS looking for completion dates less than or equal to the date in the date column.

=COUNTIFS({Project Plan Complete Date}, @cell<= [Date Column]@row)

The forecast could be a little trickier or just as simple depending on exactly what you want to show and how you have your project plan set up. If you have a Due Date, you can use a basic COUNTIFS as above, but you would have it looking in the Due Date column for rows that are greater than or equal to [Date Column]@row.

=COUNTIFS({Project Plan Due Date}, @cell>= [Date Column]@row)

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