The map and data are currently in in State Plane Michigan South International feet. We attempted creating new feature classes in Michigan GeoRef Meters, and the original default of the web Mercator after reading an article that indicated web Mercator was not appropriate for calculations.
I moved the 1 sq yard area to northern Canada and it did change my calculations.
Would you be able to assist on what an appropriate spatial reference would be for calculating area? Also, why is it different in ArcMap?