Is there a way to create cumulative line chart?

Yes, you can create a cumulative line chart. To do so, you:
- Create a parent table to the table with the data points
- Add a summary field to the parent table to total the data in the child table
- Pass the summary field back to the child table
- Create a snapshot field in the child table to hold and lock the summary field you passed back
- Create a formula field in the child table that add the data point to the snapshot field.

Feel free to call Debbie at QuickBase Services: five-one-zero 526-5690 or email debbie at quickbaseservices dot com for help