Using Workflow, I want to update a field with the previous value of the field.  Based on searching of answers.laserfiche.com I found the only way to do this was though scripting but I was not able to find any example scripts.  The code I came up with is below...

Is this the correct way to get the version just prior to the latest version or is there a better way?   (NOTE:  I had to skip two because the latest field change has already been logged as a new version, so the previous value is actually in the version 2 back).

DocumentInfo doc = this.BoundEntryInfo as DocumentInfo;
FieldValueCollection currentValues = doc.GetFieldValues();
var vh = doc.GetVersionHistory().OrderByDescending(v => v.Version).Skip(2).FirstOrDefault();
var fieldValue = vh.GetFieldValue(PAYABLE_STATUS_FIELDNAME);
this.SetToken("OldStatusValue",fieldValue);