To make changes to the units of measurement on your Tree Map, select "Manage" from the navigation bar at the top and then click on "Units" in the Administration menu on the left.
Click "Edit" in the top right. You can adjust units of measurement for Plots, Trees, and Eco Benefits. Available options include:
You can also change the number of decimal units displayed for each field.
After you are satisfied with your changes, remember to click "Save" in the top right.