How to automatically run macro when cell formula result changes?

Supposing, I have a list of formulas based on the data in column A and column B as following screenshot shown, now, I want to run a specific macro code automatically when formula result changes with its relative cells change. Is there any good idea to solve this job in Excel?

Automatically run macro when cell formula result changes with VBA code

Automatically run macro when cell formula result changes with VBA code

The following VBA code can help you to execute a specific code automatically when the formula result cell changes, please do as this:

1. Right-click the sheet tab that you want to use, and then choose View Code from the context menu, in the opened Microsoft Visual Basic for applications window, copy and paste the following code into the blank Module:

VBA code: Automatically run macro when cell formula result changes:

Private Sub Worksheet_Calculate()
'Updateby Extendoffice
    Dim Xrg As Range
    Set Xrg = Range("C2:C8")
    If Not Intersect(Xrg, Range("C2:C8")) Is Nothing Then
    Macro1
    End If
End Sub

Note: In the above code, C2:C8 is the range of formula cells that you want to use，maco1 is the name of the macro you want to run automatically. Please change it to your need.

2. Then save and close this code window, now, when the data in range A2:B8 changes to cause the formula result changes, your specific macro code is triggered at once.