Abs (number)
Returns the absolute value of a number.
The data type of the return value is the same as that of the number argument. However, if the number argument is a Variant of VarType (String) and can be converted to a number, the return value will be a Variant of VarType (Double). If the numeric expression results in a Null, _Abs returns a Null.
Example:
Sub Main
Dim Msg, X, Y
X = InputBox("Enter a Number:")
Y = Abs(X)
Msg = "The number you entered is " & X
Msg = Msg + ". The Absolute value of " & X & " is " & Y
MsgBox Msg 'Display Message.
End Sub