Not sure why the report shows the values today (it did not yesterday). But the weekday difference field is showing the value as the calculated field (Predication date diff - that I added to the form yesterday) shows.This is the form attached to each project with the calculated fields.   

Thanks, Kellie. I did have everything in lowercase and it was still not working. So, I just added a calculated field in the custom form itself and then added that in the report. I wanted to avoid taking the extra step if there was a way to directly calculate the difference in the report.

Creating a very simple Project report to show dates at project level and weekday difference between them. Two dates listed for the project are custom form dates - PredicationStart and PredicationEnd. But, my attempt to show the weekday difference is turning futile. What am I missing?Valueexpression=...