When I run sdr module, some output results show negative percentage. Is this normal?
Hello @dontknow, and welcome to the forum!
It is not normal for SDR to produce results with negative values. Which output results have negative values? (usle.tif? sed_export.tif? avoided_export? etc). Can you show us an example? And please post the .txt log file that is created in your Workspace, so we know which InVEST version you are using and other details that might help.
~ Stacie