Not Operator

Result = Not Expression

Sub ExampleNot
Dim vA As Variant, vB As Variant, vC As Variant, vD As Variant
Dim vOut As Variant
    vA = 10: vB = 8: vC = 6: vD = Null
    vOut = Not vA REM Returns -11
    vOut = Not(vC > vD) REM Returns -1
    vOut = Not(vB > vA) REM Returns -1
    vOut = Not(vA > vB) REM Returns 0
End Sub