Trigger Macro only when Cell Value is Increased - excel

Question

its me....again. I am currently trying to have a Macro trigger whenever a specific cell increases on a specific sheet.
After many attempts I have been able to get the Macro to trigger when the cell is changed (increasing or decreasing) but I cannot figure out a way to have this Macro trigger only when the specified cell increases in value.
I have tried to use simple Worksheet_Change with an If Then statement that calls the Macro when the cell value is changed. Again I can't get this to trigger only when the cell increases. Not sure it is possible or if I am even thinking about this is in the right way.
Private Sub Worksheet_Change(ByVal Target As Range)
If Target.Address "Range" Then
Call MyMacro
End If
End Sub
Thank you for any help in advance. This would be really neat and save alot of manual clicking around.
Here is the functioning Macro that I want to trigger when certain text is entered into a range.
Sub Auto_Print_Yellow_Caution()
Application.ScreenUpdating = False
Sheets("Saver").Shapes("Group 6").Copy
Sheets("Main").Select
ActiveCell.Offset(-1, 0).Select
ActiveSheet.Paste
ActiveCell.Select
Application.ScreenUpdating = True
End Sub
I already have my Workbook set up to track these words/phrases and return either a TRUE or FALSE value. If TRUE the associated Order Number is Printed into a Cell and a COUNTIFS formula is used to keep track of how many orders meet the TRUE condition. That number is then used to keep track of how many total of those orders there are. That works using the following
=IF(ISNUMBER(SEARCH("Completed",Main!G7)),TRUE)
-looks for specific word and returns TRUE
=IF(T3=TRUE,Main!A7,"")
-Returns order number
=IF(COUNTIF($U3:$U$200,"?*")<ROW(U3)-2,"",INDEX(U:U,SMALL(IF(U$2:U$200<>"",ROW(U$2:U$200)),ROWS(U$2:U3))))
-Sorts order numbers into list
=COUNTIF(T2:T135,TRUE)
-Counts number of orders
Hopefully this adds context to what I am trying to accomplish.

Answer 1

This will hopefully get you on the right track. As per your question it assumes this is required for a single cell only (and in this example code, that cell is B2). The trick is to store the new value, 'undo' the change, grab the old value, reverse the 'undo' by replacing the new value. Then you can test if the values are numbers and, if so, test if the new number is greater than the old number.
Private Sub Worksheet_Change(ByVal Target As Range)
Dim newValue As Variant, oldValue As Variant
If Target Is Nothing Then Exit Sub
If Target.Cells.Count <> 1 Then Exit Sub
If Target.Column <> 2 Or Target.Row <> 2 Then Exit Sub ' example is using cell B2
Application.EnableEvents = False
newValue = Target.Value2
Application.Undo
oldValue = Target.Value2
Target.Value2 = newValue
Application.EnableEvents = True
If IsNumeric(oldValue) And IsNumeric(newValue) Then
If CDbl(newValue) > CDbl(oldValue) Then
Call MyMacro
End If
End If
End Sub

Answer 2

Here is some logic I can think of, you need to have a helper cell to store previous data and compare if it increased. In this sample my helper cell is B1 and the cell I want to track is A1
Private Sub Worksheet_Change(ByVal Target As Range)
Dim KCells As Range
Set KCells = Sheet10.Range("A1")' The variable KeyCells contains the cells that will
If Not Application.Intersect(KCells, Range(Target.Address)) Is Nothing Then 'cause an alert when they are changed.
If Sheet10.Range("B1").Value < Sheet10.Range("A1").Value Then
MsgBox "Replace this to call macro"
Sheet10.Range("B1").Value = Sheet10.Range("A1").Value 'this is to save the current data incase you change it later.
End If
End If
End Sub