Percent of orders with add-on donation

Hello, 

I'm not sure where I found this widget, but I'm guessing it was here. I'm looking to report on the percentage of TNEW orders that include an add-on cart donation. We have a specific fund for these, so it should be easy enough. However, my widget is saying 100% and I know that isn't correct. Any ideas?

Eventually, I'll add a filter to specify the date range, but I thought I'd start with all to refine the parameters. Dash is attached.

Thanks!
Anne

OrderswithContributions.dash