Uncompleted Donation Statuses should not effect Total Revenue for Forms when Deleted.
under review
Ben Meredith
under review
We'll keep an eye on this issue for inclusion in a future release. At this point with not many people reporting it, we're hesitant to make it a priority.
The workaround now is that after you delete a donation that is exhibiting this behavior, you can recalculate the totals using the tools at Donations > Tools > Data to correct any discrepancies. You may also need to flush the GiveWP cache at Donations > Settings > Advanced to see changes take effect.