Robert,
I set the precision (significant digits) to 3 and republished the feature service through ArcGIS Online Subscription Services (AGO SS) but the numbers still return unformatted (ie. 53.333) in the widget results. If I publish a Map Service through AGO SS, I do not have access to the attributes, so that doesn't work. I do not have a server so cannot publish directly and I do not have access to the tools necessary to recompile the uncompiled version (assuming I could get the Action Script to work). Thanks for your suggestions.