I am using a hosted feature service, maintained by my county assessor, that uses spatial reference, 102100 (3857), the units of which are "esriMeters". It is hosted here if you want to see the metadata:
https://services5.arcgis.com/ROBnTHSNjoZ2Wm1P/ArcGIS/rest/services/Parcels/FeatureServer
In my map on ArcGIS Online, I added an expression Area($feature, 'square-feet'). For a feature that is 7287 square feet in fact, the result is 11247. This isn't consistent with foot/meters confusion because because the ratio is wrong. If I measure the shape with the area measurement tool, I get the correct figure in square feet. I gather that the measurement tool uses the basemap spatial reference. See screenshot below.
The question is: what's the problem here? Is the metadata of the hosted feature layer incorrect? Or do I need to do something in the map to correct it?
