VBA, If active cell in range does not equal a String call Macro - excel

Question

I am very new to the World of VBA. I am attempting to add to an existing Private Sub(Change). I am trying to "fire" the Macro "DelRCE" When the Active Cell in Range("K2:K700") Does Not equal the word "Down".
The code below is not working:
Dim txt As String
Dim rng As Range
Dim vec As String
txt = ActiveCell.Value
rng = ("K2:K700")
vec = "Down"
If r_ng.txt <> vec Then
Call Macro
End If

Answer 1

I assume you are looking for something like this:
Private Sub Worksheet_Change(ByVal Target As Range)
Dim ws As Worksheet
Dim key As String
Dim rng As Range
'Set the word you want to search for. Take capital letters into account
key = "down"
'Set worksheet to the first sheet in your workbook
Set ws = ThisWorkbook.Sheets(1)
'Change this to the range you want to search
Set rng = ws.Range("A1:A100")
'Check if the target is in the range
If Not Intersect(Target, rng) Is Nothing Then
If Target.Value <> key Then
'Change this to you function call
MsgBox "The target is inside the range and the value is different from '" & key & "'"
End If
End If
End Sub

Answer 2

Put the cursor inside the test_Change sub and hit PF5 to run it.
private Sub Change()
Dim txt As String
Dim rng As Range
Dim vec As String
txt = ActiveCell.Value
rng = ("K2:K700")
vec = "Down"
If r_ng.txt <> vec Then
Call DelRCE ' or "Run DelRCE" if it is a function
End If
End Sub
Private Sub test_Change()
call Change
End Sub

Answer 3

Add the code below to the relevent Worksheet module, under the Worksheet_Change event:
Option Explicit
Private Sub Worksheet_Change(ByVal Target As Range)
Dim vec As String
vec = "Down"
If Not Intersect(Target, Range("K2:K700")) Is Nothing Then ' check that modifed cell is inside the Range("K2:K700")
If Target.Count > 1 Then Exit Sub ' Optional : if more than 1 cell selected exut the sub
If Not Target.Value Like vec Then ' Also possible to use: If Target.Value <> vec
Call Macro
End If
End If
End Sub